102102211992 has 64 divisors (see below), whose sum is σ = 278566070400. Its totient is φ = 30928343040.

The previous prime is 102102211979. The next prime is 102102211993. The reversal of 102102211992 is 299112201201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102211993) 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, 637983 + ... + 781809.

It is an arithmetic number, because the mean of its divisors is an integer number (4352594850).

Almost surely, 2^102102211992 is an apocalyptic number.

102102211992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102102211992 is an abundant number, since it is smaller than the sum of its proper divisors (176463858408).

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

102102211992 is a wasteful number, since it uses less digits than its factorization.

102102211992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146536 (or 146532 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The spelling of 102102211992 in words is "one hundred two billion, one hundred two million, two hundred eleven thousand, nine hundred ninety-two".