202122002012 has 24 divisors (see below), whose sum is σ = 404254103904. Its totient is φ = 86621550912.

The previous prime is 202122002009. The next prime is 202122002057. The reversal of 202122002012 is 210200221202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618598 + ... + 1738994.

It is an arithmetic number, because the mean of its divisors is an integer number (16843920996).

Almost surely, 2^202122002012 is an apocalyptic number.

It is an amenable number.

202122002012 is an abundant number, since it is smaller than the sum of its proper divisors (202132101892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202122002012 is a wasteful number, since it uses less digits than its factorization.

202122002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180365 (or 180363 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202122002012 its reverse (210200221202), we get a palindrome (412322223214).

The spelling of 202122002012 in words is "two hundred two billion, one hundred twenty-two million, two thousand, twelve".