102121220210110 has 48 divisors (see below), whose sum is σ = 194042572747200. Its totient is φ = 38690480388672.

The previous prime is 102121220210069. The next prime is 102121220210111. The reversal of 102121220210110 is 11012022121201.

It is a super-2 number, since 2×102121220210110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121220210111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14334811 + ... + 20241769.

It is an arithmetic number, because the mean of its divisors is an integer number (4042553598900).

Almost surely, 2^{102121220210110} is an apocalyptic number.

102121220210110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121220210110 is a deficient number, since it is larger than the sum of its proper divisors (91921352537090).

102121220210110 is a wasteful number, since it uses less digits than its factorization.

102121220210110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911793 (or 5911774 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102121220210110 its reverse (11012022121201), we get a palindrome (113133242331311).

The spelling of 102121220210110 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twenty million, two hundred ten thousand, one hundred ten".