201222021122020 has 48 divisors (see below), whose sum is σ = 436239625102848. Its totient is φ = 77884857492480.

The previous prime is 201222021121949. The next prime is 201222021122029. The reversal of 201222021122020 is 20221120222102.

It is not an unprimeable number, because it can be changed into a prime (201222021122029) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9289602 + ... + 22107481.

It is an arithmetic number, because the mean of its divisors is an integer number (9088325522976).

Almost surely, 2^{201222021122020} is an apocalyptic number.

201222021122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222021122020 is an abundant number, since it is smaller than the sum of its proper divisors (235017603980828).

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

201222021122020 is a wasteful number, since it uses less digits than its factorization.

201222021122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31407460 (or 31407458 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 201222021122020 its reverse (20221120222102), we get a palindrome (221443141344122).

The spelling of 201222021122020 in words is "two hundred one trillion, two hundred twenty-two billion, twenty-one million, one hundred twenty-two thousand, twenty".