222101201021121 has 48 divisors (see below), whose sum is σ = 330233352196800. Its totient is φ = 143737897645440.

The previous prime is 222101201021113. The next prime is 222101201021149. The reversal of 222101201021121 is 121120102101222.

222101201021121 is a `hidden beast` number, since 22 + 210 + 1 + 201 + 0 + 211 + 21 = 666.

It is not a de Polignac number, because 222101201021121 - 2³ = 222101201021113 is a prime.

It is a super-4 number, since 4×222101201021121⁴ (a number of 58 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222101201021094 and 222101201021103.

It is not an unprimeable number, because it can be changed into a prime (222101201021221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 693583155 + ... + 693903303.

It is an arithmetic number, because the mean of its divisors is an integer number (6879861504100).

Almost surely, 2^{222101201021121} is an apocalyptic number.

It is an amenable number.

222101201021121 is a deficient number, since it is larger than the sum of its proper divisors (108132151175679).

222101201021121 is a wasteful number, since it uses less digits than its factorization.

222101201021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324926 (or 324923 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222101201021121 its reverse (121120102101222), we get a palindrome (343221303122343).

The spelling of 222101201021121 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred one million, twenty-one thousand, one hundred twenty-one".