100001211221002 has 32 divisors (see below), whose sum is σ = 186520895188992. Its totient is φ = 39153074194944.

The previous prime is 100001211220987. The next prime is 100001211221033. The reversal of 100001211221002 is 200122112100001.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2832235978 + ... + 2832271285.

It is an arithmetic number, because the mean of its divisors is an integer number (5828777974656).

Almost surely, 2^{100001211221002} is an apocalyptic number.

100001211221002 is a deficient number, since it is larger than the sum of its proper divisors (86519683967990).

100001211221002 is a wasteful number, since it uses less digits than its factorization.

100001211221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664507382.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100001211221002 its reverse (200122112100001), we get a palindrome (300123323321003).

The spelling of 100001211221002 in words is "one hundred trillion, one billion, two hundred eleven million, two hundred twenty-one thousand, two".