121252610 has 16 divisors (see below), whose sum is σ = 218538432. Its totient is φ = 48438000.

The previous prime is 121252583. The next prime is 121252633. The reversal of 121252610 is 16252121.

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, 635 + ... + 15585.

It is an arithmetic number, because the mean of its divisors is an integer number (13658652).

Almost surely, 2^121252610 is an apocalyptic number.

121252610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121252610 is a deficient number, since it is larger than the sum of its proper divisors (97285822).

121252610 is a wasteful number, since it uses less digits than its factorization.

121252610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15769.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 121252610 is about 11011.4762861298. The cubic root of 121252610 is about 494.9527009868.

The spelling of 121252610 in words is "one hundred twenty-one million, two hundred fifty-two thousand, six hundred ten".