202001210122020 has 48 divisors (see below), whose sum is σ = 580889966411328. Its totient is φ = 52411124787840.

The previous prime is 202001210122009. The next prime is 202001210122051. The reversal of 202001210122020 is 20221012100202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45495765826 + ... + 45495770265.

It is an arithmetic number, because the mean of its divisors is an integer number (12101874300236).

Almost surely, 2^{202001210122020} is an apocalyptic number.

202001210122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202001210122020 is an abundant number, since it is smaller than the sum of its proper divisors (378888756289308).

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

202001210122020 is a wasteful number, since it uses less digits than its factorization.

202001210122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90991536140 (or 90991536138 counting only the distinct ones).

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

Adding to 202001210122020 its reverse (20221012100202), we get a palindrome (222222222222222).

The spelling of 202001210122020 in words is "two hundred two trillion, one billion, two hundred ten million, one hundred twenty-two thousand, twenty".