102121221110000 has 100 divisors (see below), whose sum is σ = 250935924231432. Its totient is φ = 40238809248000.

The previous prime is 102121221109987. The next prime is 102121221110003. The reversal of 102121221110000 is 11122121201.

It is a tau number, because it is divible by the number of its divisors (100).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121221110003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 75539867 + ... + 76879866.

Almost surely, 2^{102121221110000} is an apocalyptic number.

102121221110000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102121221110000 is an abundant number, since it is smaller than the sum of its proper divisors (148814703121432).

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

102121221110000 is an equidigital number, since it uses as much as digits as its factorization.

102121221110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152419828 (or 152419807 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102121221110000 its reverse (11122121201), we get a palindrome (102132343231201).

The spelling of 102121221110000 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred ten thousand".