2021121102212 has 24 divisors (see below), whose sum is σ = 3604061563200. Its totient is φ = 991457333216.

The previous prime is 2021121102211. The next prime is 2021121102229. The reversal of 2021121102212 is 2122011211202.

It is not an unprimeable number, because it can be changed into a prime (2021121102211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8394287 + ... + 8631702.

It is an arithmetic number, because the mean of its divisors is an integer number (150169231800).

Almost surely, 2^{2021121102212} is an apocalyptic number.

It is an amenable number.

2021121102212 is a deficient number, since it is larger than the sum of its proper divisors (1582940460988).

2021121102212 is a wasteful number, since it uses less digits than its factorization.

2021121102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17026555 (or 17026553 counting only the distinct ones).

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

Adding to 2021121102212 its reverse (2122011211202), we get a palindrome (4143132313414).

The spelling of 2021121102212 in words is "two trillion, twenty-one billion, one hundred twenty-one million, one hundred two thousand, two hundred twelve".