1000021111010 has 16 divisors (see below), whose sum is σ = 1800055697472. Its totient is φ = 400004511600.

The previous prime is 1000021110953. The next prime is 1000021111013. The reversal of 1000021111010 is 101111200001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1000021111013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718115 + ... + 1586105.

It is an arithmetic number, because the mean of its divisors is an integer number (112503481092).

Almost surely, 2^{1000021111010} is an apocalyptic number.

1000021111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000021111010 is a deficient number, since it is larger than the sum of its proper divisors (800034586462).

1000021111010 is a wasteful number, since it uses less digits than its factorization.

1000021111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983209.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 1000021111010 its reverse (101111200001), we get a palindrome (1101132311011).

The spelling of 1000021111010 in words is "one trillion, twenty-one million, one hundred eleven thousand, ten".