121254252110 has 16 divisors (see below), whose sum is σ = 218462995296. Its totient is φ = 48456069408.

The previous prime is 121254252109. The next prime is 121254252167. The reversal of 121254252110 is 11252452121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121254252110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5692769 + ... + 5714028.

It is an arithmetic number, because the mean of its divisors is an integer number (13653937206).

Almost surely, 2^121254252110 is an apocalyptic number.

121254252110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121254252110 is a deficient number, since it is larger than the sum of its proper divisors (97208743186).

121254252110 is a wasteful number, since it uses less digits than its factorization.

121254252110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11407867.

The product of its (nonzero) digits is 1600, while the sum is 26.

The spelling of 121254252110 in words is "one hundred twenty-one billion, two hundred fifty-four million, two hundred fifty-two thousand, one hundred ten".