202001122021120 has 72 divisors (see below), whose sum is σ = 488646464513760. Its totient is φ = 80000444313600.

The previous prime is 202001122021099. The next prime is 202001122021141. The reversal of 202001122021120 is 21120221100202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (202001122021099) and next prime (202001122021141).

It is a super-2 number, since 2×202001122021120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 202001122021094 and 202001122021103.

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, 781125060 + ... + 781383619.

It is an arithmetic number, because the mean of its divisors is an integer number (6786756451580).

Almost surely, 2^{202001122021120} is an apocalyptic number.

202001122021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202001122021120 is an abundant number, since it is smaller than the sum of its proper divisors (286645342492640).

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

202001122021120 is a wasteful number, since it uses less digits than its factorization.

202001122021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562508801 (or 1562508787 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202001122021120 its reverse (21120221100202), we get a palindrome (223121343121322).

The spelling of 202001122021120 in words is "two hundred two trillion, one billion, one hundred twenty-two million, twenty-one thousand, one hundred twenty".