222021212010220 has 24 divisors (see below), whose sum is σ = 532850908824864. Its totient is φ = 76121558403456.

The previous prime is 222021212010197. The next prime is 222021212010229. The reversal of 222021212010220 is 22010212120222.

It is not an unprimeable number, because it can be changed into a prime (222021212010229) 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, 792932899897 + ... + 792932900176.

It is an arithmetic number, because the mean of its divisors is an integer number (22202121201036).

Almost surely, 2^{222021212010220} is an apocalyptic number.

222021212010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222021212010220 is an abundant number, since it is smaller than the sum of its proper divisors (310829696814644).

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

222021212010220 is a wasteful number, since it uses less digits than its factorization.

222021212010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585865800089 (or 1585865800087 counting only the distinct ones).

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

Adding to 222021212010220 its reverse (22010212120222), we get a palindrome (244031424130442).

The spelling of 222021212010220 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred twelve million, ten thousand, two hundred twenty".