222101211212010 has 128 divisors (see below), whose sum is σ = 646566505320960. Its totient is φ = 53922148581888.

The previous prime is 222101211211973. The next prime is 222101211212011. The reversal of 222101211212010 is 10212112101222.

222101211212010 is a `hidden beast` number, since 2 + 221 + 0 + 121 + 121 + 201 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (222101211212011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 433145814 + ... + 433658273.

It is an arithmetic number, because the mean of its divisors is an integer number (5051300822820).

Almost surely, 2^{222101211212010} is an apocalyptic number.

222101211212010 is an abundant number, since it is smaller than the sum of its proper divisors (424465294108950).

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

222101211212010 is a wasteful number, since it uses less digits than its factorization.

222101211212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866804189 (or 866804183 counting only the distinct ones).

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

Adding to 222101211212010 its reverse (10212112101222), we get a palindrome (232313323313232).

The spelling of 222101211212010 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred eleven million, two hundred twelve thousand, ten".