202102121100212 has 24 divisors (see below), whose sum is σ = 365892770073600. Its totient is φ = 97561677088736.

The previous prime is 202102121100211. The next prime is 202102121100221. The reversal of 202102121100212 is 212001121201202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102121100211) 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, 41092412 + ... + 45747027.

It is an arithmetic number, because the mean of its divisors is an integer number (15245532086400).

Almost surely, 2^{202102121100212} is an apocalyptic number.

It is an amenable number.

202102121100212 is a deficient number, since it is larger than the sum of its proper divisors (163790648973388).

202102121100212 is a wasteful number, since it uses less digits than its factorization.

202102121100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86859535 (or 86859533 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202102121100212 its reverse (212001121201202), we get a palindrome (414103242301414).

The spelling of 202102121100212 in words is "two hundred two trillion, one hundred two billion, one hundred twenty-one million, one hundred thousand, two hundred twelve".