100211320021121 has 32 divisors (see below), whose sum is σ = 105264524851200. Its totient is φ = 95268277440000.

The previous prime is 100211320021117. The next prime is 100211320021129. The reversal of 100211320021121 is 121120023112001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100211320021121 - 2² = 100211320021117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100211320021121.

It is not an unprimeable number, because it can be changed into a prime (100211320021129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5299092656 + ... + 5299111566.

It is an arithmetic number, because the mean of its divisors is an integer number (3289516401600).

Almost surely, 2^{100211320021121} is an apocalyptic number.

It is an amenable number.

100211320021121 is a deficient number, since it is larger than the sum of its proper divisors (5053204830079).

100211320021121 is a wasteful number, since it uses less digits than its factorization.

100211320021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22241.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 100211320021121 its reverse (121120023112001), we get a palindrome (221331343133122).

The spelling of 100211320021121 in words is "one hundred trillion, two hundred eleven billion, three hundred twenty million, twenty-one thousand, one hundred twenty-one".