102211022221212 has 48 divisors (see below), whose sum is σ = 261228981756960. Its totient is φ = 30960471908352.

The previous prime is 102211022221199. The next prime is 102211022221283. The reversal of 102211022221212 is 212122220112201.

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, 8638518613 + ... + 8638530444.

It is an arithmetic number, because the mean of its divisors is an integer number (5442270453270).

Almost surely, 2^{102211022221212} is an apocalyptic number.

102211022221212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102211022221212 is an abundant number, since it is smaller than the sum of its proper divisors (159017959535748).

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

102211022221212 is a wasteful number, since it uses less digits than its factorization.

102211022221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17277049110 (or 17277049108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 102211022221212 its reverse (212122220112201), we get a palindrome (314333242333413).

The spelling of 102211022221212 in words is "one hundred two trillion, two hundred eleven billion, twenty-two million, two hundred twenty-one thousand, two hundred twelve".