102220021212012 has 96 divisors (see below), whose sum is σ = 306113432567040. Its totient is φ = 29153660232960.

The previous prime is 102220021211953. The next prime is 102220021212061. The reversal of 102220021212012 is 210212120022201.

It is a happy number.

102220021212012 is a `hidden beast` number, since 102 + 220 + 0 + 212 + 120 + 12 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2530679478 + ... + 2530719869.

It is an arithmetic number, because the mean of its divisors is an integer number (3188681589240).

Almost surely, 2^{102220021212012} is an apocalyptic number.

102220021212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102220021212012 is an abundant number, since it is smaller than the sum of its proper divisors (203893411355028).

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

102220021212012 is a wasteful number, since it uses less digits than its factorization.

102220021212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061399388 (or 5061399380 counting only the distinct ones).

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

Adding to 102220021212012 its reverse (210212120022201), we get a palindrome (312432141234213).

The spelling of 102220021212012 in words is "one hundred two trillion, two hundred twenty billion, twenty-one million, two hundred twelve thousand, twelve".