222121111220102 has 32 divisors (see below), whose sum is σ = 351518116262400. Its totient is φ = 104975352222048.

The previous prime is 222121111220101. The next prime is 222121111220153. The reversal of 222121111220102 is 201022111121222.

222121111220102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121111220101) 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, 27062948 + ... + 34302264.

It is an arithmetic number, because the mean of its divisors is an integer number (10984941133200).

Almost surely, 2^{222121111220102} is an apocalyptic number.

222121111220102 is a deficient number, since it is larger than the sum of its proper divisors (129397005042298).

222121111220102 is a wasteful number, since it uses less digits than its factorization.

222121111220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7241180.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222121111220102 its reverse (201022111121222), we get a palindrome (423143222341324).

The spelling of 222121111220102 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, two hundred twenty thousand, one hundred two".