102211120021020 has 24 divisors (see below), whose sum is σ = 286191136059024. Its totient is φ = 27256298672256.

The previous prime is 102211120021019. The next prime is 102211120021139. The reversal of 102211120021020 is 20120021112201.

It is a super-3 number, since 3×102211120021020³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851759333449 + ... + 851759333568.

It is an arithmetic number, because the mean of its divisors is an integer number (11924630669126).

Almost surely, 2^{102211120021020} is an apocalyptic number.

102211120021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102211120021020 is an abundant number, since it is smaller than the sum of its proper divisors (183980016038004).

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

102211120021020 is a wasteful number, since it uses less digits than its factorization.

102211120021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703518667029 (or 1703518667027 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102211120021020 its reverse (20120021112201), we get a palindrome (122331141133221).

The spelling of 102211120021020 in words is "one hundred two trillion, two hundred eleven billion, one hundred twenty million, twenty-one thousand, twenty".