222130201022121 has 64 divisors (see below), whose sum is σ = 344091834777600. Its totient is φ = 124845707759616.

The previous prime is 222130201022077. The next prime is 222130201022123. The reversal of 222130201022121 is 121220102031222.

It is not a de Polignac number, because 222130201022121 - 2³¹ = 222128053538473 is a prime.

It is a super-2 number, since 2×222130201022121² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (222130201022123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 606184885 + ... + 606551213.

It is an arithmetic number, because the mean of its divisors is an integer number (5376434918400).

Almost surely, 2^{222130201022121} is an apocalyptic number.

222130201022121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222130201022121 is a deficient number, since it is larger than the sum of its proper divisors (121961633755479).

222130201022121 is a wasteful number, since it uses less digits than its factorization.

222130201022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368278.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 222130201022121 its reverse (121220102031222), we get a palindrome (343350303053343).

The spelling of 222130201022121 in words is "two hundred twenty-two trillion, one hundred thirty billion, two hundred one million, twenty-two thousand, one hundred twenty-one".