201021222010120 has 16 divisors (see below), whose sum is σ = 452297749522860. Its totient is φ = 80408488804032.

The previous prime is 201021222010109. The next prime is 201021222010123. The reversal of 201021222010120 is 21010222120102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 187716688548676 + 13304533461444 = 13700974^2 + 3647538^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201021222010094 and 201021222010103.

It is not an unprimeable number, because it can be changed into a prime (201021222010123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2512765275087 + ... + 2512765275166.

Almost surely, 2^{201021222010120} is an apocalyptic number.

201021222010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201021222010120 is an abundant number, since it is smaller than the sum of its proper divisors (251276527512740).

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

201021222010120 is a wasteful number, since it uses less digits than its factorization.

201021222010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025530550264 (or 5025530550260 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201021222010120 its reverse (21010222120102), we get a palindrome (222031444130222).

The spelling of 201021222010120 in words is "two hundred one trillion, twenty-one billion, two hundred twenty-two million, ten thousand, one hundred twenty".