1210211001010 has 48 divisors (see below), whose sum is σ = 2395588687128. Its totient is φ = 439861466880.

The previous prime is 1210211000981. The next prime is 1210211001029. The reversal of 1210211001010 is 101001120121.

It can be written as a sum of positive squares in 4 ways, for example, as 1128207233241 + 82003767769 = 1062171^2 + 286363^2 .

It is a super-2 number, since 2×1210211001010² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2240542 + ... + 2727718.

Almost surely, 2^{1210211001010} is an apocalyptic number.

1210211001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210211001010 is a deficient number, since it is larger than the sum of its proper divisors (1185377686118).

1210211001010 is a wasteful number, since it uses less digits than its factorization.

1210211001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489259 (or 489248 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1210211001010 its reverse (101001120121), we get a palindrome (1311212121131).

The spelling of 1210211001010 in words is "one trillion, two hundred ten billion, two hundred eleven million, one thousand, ten".