102121212021110 has 128 divisors (see below), whose sum is σ = 206221650001920. Its totient is φ = 36224888743296.

The previous prime is 102121212021097. The next prime is 102121212021119. The reversal of 102121212021110 is 11120212121201.

102121212021110 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121212021119) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2978754029 + ... + 2978788311.

It is an arithmetic number, because the mean of its divisors is an integer number (1611106640640).

Almost surely, 2^{102121212021110} is an apocalyptic number.

102121212021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121212021110 is an abundant number, since it is smaller than the sum of its proper divisors (104100437980810).

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

102121212021110 is a wasteful number, since it uses less digits than its factorization.

102121212021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48882.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102121212021110 its reverse (11120212121201), we get a palindrome (113241424142311).

The spelling of 102121212021110 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twelve million, twenty-one thousand, one hundred ten".