202022121011220 has 144 divisors (see below), whose sum is σ = 617167645436160. Its totient is φ = 53489556772608.

The previous prime is 202022121011203. The next prime is 202022121011231. The reversal of 202022121011220 is 22110121220202.

It is a happy number.

202022121011220 is a `hidden beast` number, since 2 + 0 + 2 + 0 + 221 + 210 + 11 + 220 = 666.

202022121011220 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202022121011193 and 202022121011202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16238677 + ... + 25840643.

It is an arithmetic number, because the mean of its divisors is an integer number (4285886426640).

Almost surely, 2^{202022121011220} is an apocalyptic number.

202022121011220 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 202022121011220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308583822718080).

202022121011220 is an abundant number, since it is smaller than the sum of its proper divisors (415145524424940).

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

202022121011220 is a wasteful number, since it uses less digits than its factorization.

202022121011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9602814 (or 9602809 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202022121011220 its reverse (22110121220202), we get a palindrome (224132242231422).

The spelling of 202022121011220 in words is "two hundred two trillion, twenty-two billion, one hundred twenty-one million, eleven thousand, two hundred twenty".