202212021020 has 96 divisors (see below), whose sum is σ = 453582581760. Its totient is φ = 75595322880.

The previous prime is 202212020987. The next prime is 202212021041. The reversal of 202212021020 is 20120212202.

It is a junction number, because it is equal to n+sod(n) for n = 202212020986 and 202212021004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2330129 + ... + 2415351.

It is an arithmetic number, because the mean of its divisors is an integer number (4724818560).

Almost surely, 2^202212021020 is an apocalyptic number.

202212021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202212021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226791290880).

202212021020 is an abundant number, since it is smaller than the sum of its proper divisors (251370560740).

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

202212021020 is a wasteful number, since it uses less digits than its factorization.

202212021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85395 (or 85393 counting only the distinct ones).

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

Adding to 202212021020 its reverse (20120212202), we get a palindrome (222332233222).

The spelling of 202212021020 in words is "two hundred two billion, two hundred twelve million, twenty-one thousand, twenty".