102021221212212 has 24 divisors (see below), whose sum is σ = 238276014303712. Its totient is φ = 33974716860000.

The previous prime is 102021221212199. The next prime is 102021221212237. The reversal of 102021221212212 is 212212122120201.

It is a super-3 number, since 3×102021221212212³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4044596539 + ... + 4044621762.

Almost surely, 2^{102021221212212} is an apocalyptic number.

102021221212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102021221212212 is an abundant number, since it is smaller than the sum of its proper divisors (136254793091500).

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

102021221212212 is a wasteful number, since it uses less digits than its factorization.

102021221212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8089219359 (or 8089219357 counting only the distinct ones).

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

Adding to 102021221212212 its reverse (212212122120201), we get a palindrome (314233343332413).

The spelling of 102021221212212 in words is "one hundred two trillion, twenty-one billion, two hundred twenty-one million, two hundred twelve thousand, two hundred twelve".