222001022020 has 24 divisors (see below), whose sum is σ = 466252789464. Its totient is φ = 88790762496.

The previous prime is 222001022003. The next prime is 222001022029. The reversal of 222001022020 is 20220100222.

It can be written as a sum of positive squares in 4 ways, for example, as 110660014336 + 111341007684 = 332656^2 + 333678^2 .

It is not an unprimeable number, because it can be changed into a prime (222001022029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412717 + ... + 783796.

It is an arithmetic number, because the mean of its divisors is an integer number (19427199561).

Almost surely, 2^222001022020 is an apocalyptic number.

222001022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222001022020 is an abundant number, since it is smaller than the sum of its proper divisors (244251767444).

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

222001022020 is a wasteful number, since it uses less digits than its factorization.

222001022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205799 (or 1205797 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 222001022020 its reverse (20220100222), we get a palindrome (242221122242).

The spelling of 222001022020 in words is "two hundred twenty-two billion, one million, twenty-two thousand, twenty".