102021211111222 has 32 divisors (see below), whose sum is σ = 165717160539840. Its totient is φ = 46825675378560.

The previous prime is 102021211111213. The next prime is 102021211111427. The reversal of 102021211111222 is 222111112120201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102021211111222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291281679 + ... + 291631717.

It is an arithmetic number, because the mean of its divisors is an integer number (5178661266870).

Almost surely, 2^{102021211111222} is an apocalyptic number.

102021211111222 is a deficient number, since it is larger than the sum of its proper divisors (63695949428618).

102021211111222 is a wasteful number, since it uses less digits than its factorization.

102021211111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412168.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102021211111222 its reverse (222111112120201), we get a palindrome (324132323231423).

The spelling of 102021211111222 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred eleven thousand, two hundred twenty-two".