100212111112021 has 16 divisors (see below), whose sum is σ = 107324158552128. Its totient is φ = 93238214688000.

The previous prime is 100212111111977. The next prime is 100212111112031. The reversal of 100212111112021 is 120211111212001.

It is not a de Polignac number, because 100212111112021 - 2¹³ = 100212111103829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100212111111986 and 100212111112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100212111112031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44280615 + ... + 46488676.

It is an arithmetic number, because the mean of its divisors is an integer number (6707759909508).

Almost surely, 2^{100212111112021} is an apocalyptic number.

It is an amenable number.

100212111112021 is a deficient number, since it is larger than the sum of its proper divisors (7112047440107).

100212111112021 is a wasteful number, since it uses less digits than its factorization.

100212111112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90770052.

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

Adding to 100212111112021 its reverse (120211111212001), we get a palindrome (220423222324022).

The spelling of 100212111112021 in words is "one hundred trillion, two hundred twelve billion, one hundred eleven million, one hundred twelve thousand, twenty-one".