222002221020020 has 48 divisors (see below), whose sum is σ = 532815667281408. Its totient is φ = 76113570516480.

The previous prime is 222002221020011. The next prime is 222002221020023. The reversal of 222002221020020 is 20020122200222.

It is a super-2 number, since 2×222002221020020² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002221020023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8128037 + ... + 22584716.

It is an arithmetic number, because the mean of its divisors is an integer number (11100326401696).

Almost surely, 2^{222002221020020} is an apocalyptic number.

222002221020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222002221020020 is an abundant number, since it is smaller than the sum of its proper divisors (310813446261388).

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

222002221020020 is a wasteful number, since it uses less digits than its factorization.

222002221020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30764400 (or 30764398 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 222002221020020 its reverse (20020122200222), we get a palindrome (242022343220242).

The spelling of 222002221020020 in words is "two hundred twenty-two trillion, two billion, two hundred twenty-one million, twenty thousand, twenty".