202022011212 has 72 divisors (see below), whose sum is σ = 548701027056. Its totient is φ = 57683146752.

The previous prime is 202022011157. The next prime is 202022011229. The reversal of 202022011212 is 212110220202.

It is a junction number, because it is equal to n+sod(n) for n = 202022011191 and 202022011200.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 802548 + ... + 1023780.

It is an arithmetic number, because the mean of its divisors is an integer number (7620847598).

Almost surely, 2^202022011212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202022011212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274350513528).

202022011212 is an abundant number, since it is smaller than the sum of its proper divisors (346679015844).

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

202022011212 is a wasteful number, since it uses less digits than its factorization.

202022011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222807 (or 222798 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202022011212 its reverse (212110220202), we get a palindrome (414132231414).

The spelling of 202022011212 in words is "two hundred two billion, twenty-two million, eleven thousand, two hundred twelve".