100212122211121 has 8 divisors (see below), whose sum is σ = 100297503190304. Its totient is φ = 100126775181600.

The previous prime is 100212122211077. The next prime is 100212122211133. The reversal of 100212122211121 is 121112221212001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100212122211121 - 2¹⁵ = 100212122178353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100212123211121) 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, 2579580 + ... + 14390221.

It is an arithmetic number, because the mean of its divisors is an integer number (12537187898788).

Almost surely, 2^{100212122211121} is an apocalyptic number.

It is an amenable number.

100212122211121 is a deficient number, since it is larger than the sum of its proper divisors (85380979183).

100212122211121 is a wasteful number, since it uses less digits than its factorization.

100212122211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16974831.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 100212122211121 its reverse (121112221212001), we get a palindrome (221324343423122).

The spelling of 100212122211121 in words is "one hundred trillion, two hundred twelve billion, one hundred twenty-two million, two hundred eleven thousand, one hundred twenty-one".