102121021111010 has 32 divisors (see below), whose sum is σ = 211082684788800. Its totient is φ = 35180447463360.

The previous prime is 102121021110959. The next prime is 102121021111019. The reversal of 102121021111010 is 10111120121201.

It is not an unprimeable number, because it can be changed into a prime (102121021111019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24430864205 + ... + 24430868384.

It is an arithmetic number, because the mean of its divisors is an integer number (6596333899650).

Almost surely, 2^{102121021111010} is an apocalyptic number.

102121021111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121021111010 is an abundant number, since it is smaller than the sum of its proper divisors (108961663677790).

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

102121021111010 is a wasteful number, since it uses less digits than its factorization.

102121021111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48861732626.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102121021111010 its reverse (10111120121201), we get a palindrome (112232141232211).

The spelling of 102121021111010 in words is "one hundred two trillion, one hundred twenty-one billion, twenty-one million, one hundred eleven thousand, ten".