222530012121 has 16 divisors (see below), whose sum is σ = 316420171200. Its totient is φ = 138622161408.

The previous prime is 222530012101. The next prime is 222530012141. The reversal of 222530012121 is 121210035222.

It is an interprime number because it is at equal distance from previous prime (222530012101) and next prime (222530012141).

It is not a de Polignac number, because 222530012121 - 2¹⁰ = 222530011097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222530012101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15688356 + ... + 15702533.

It is an arithmetic number, because the mean of its divisors is an integer number (19776260700).

Almost surely, 2^222530012121 is an apocalyptic number.

It is an amenable number.

222530012121 is a deficient number, since it is larger than the sum of its proper divisors (93890159079).

222530012121 is a wasteful number, since it uses less digits than its factorization.

222530012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31391048.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 222530012121 its reverse (121210035222), we get a palindrome (343740047343).

The spelling of 222530012121 in words is "two hundred twenty-two billion, five hundred thirty million, twelve thousand, one hundred twenty-one".