102122021020212 has 144 divisors (see below), whose sum is σ = 272288943239040. Its totient is φ = 32207848992000.

The previous prime is 102122021020169. The next prime is 102122021020277. The reversal of 102122021020212 is 212020120221201.

It is a happy number.

102122021020212 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 220 + 210 + 20 + 212 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88153839 + ... + 89304777.

It is an arithmetic number, because the mean of its divisors is an integer number (1890895439160).

Almost surely, 2^{102122021020212} is an apocalyptic number.

102122021020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102122021020212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136144471619520).

102122021020212 is an abundant number, since it is smaller than the sum of its proper divisors (170166922218828).

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

102122021020212 is a wasteful number, since it uses less digits than its factorization.

102122021020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152134 (or 1152129 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102122021020212 its reverse (212020120221201), we get a palindrome (314142141241413).

The spelling of 102122021020212 in words is "one hundred two trillion, one hundred twenty-two billion, twenty-one million, twenty thousand, two hundred twelve".