1021212010 has 128 divisors (see below), whose sum is σ = 2349139968. Its totient is φ = 311040000.

The previous prime is 1021212007. The next prime is 1021212043. The reversal of 1021212010 is 102121201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3768175 + ... + 3768445.

It is an arithmetic number, because the mean of its divisors is an integer number (18352656).

Almost surely, 2^1021212010 is an apocalyptic number.

1021212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021212010 is an abundant number, since it is smaller than the sum of its proper divisors (1327927958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021212010 is a wasteful number, since it uses less digits than its factorization.

1021212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1021212010 is about 31956.4079646008. The cubic root of 1021212010 is about 1007.0212565780.

1021212010 divided by its sum of digits (10) gives a palindrome (102121201).

Adding to 1021212010 its reverse (102121201), we get a palindrome (1123333211).

It can be divided in two parts, 10212 and 12010, that added together give a palindrome (22222).

The spelling of 1021212010 in words is "one billion, twenty-one million, two hundred twelve thousand, ten".