121200929210 has 16 divisors (see below), whose sum is σ = 218169909000. Its totient is φ = 48478541376.

The previous prime is 121200929207. The next prime is 121200929221. The reversal of 121200929210 is 12929002121.

It can be written as a sum of positive squares in 4 ways, for example, as 101092838401 + 20108090809 = 317951^2 + 141803^2 .

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, 67616 + ... + 496964.

Almost surely, 2^121200929210 is an apocalyptic number.

121200929210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121200929210 is a deficient number, since it is larger than the sum of its proper divisors (96968979790).

121200929210 is a wasteful number, since it uses less digits than its factorization.

121200929210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457585.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 121200929210 in words is "one hundred twenty-one billion, two hundred million, nine hundred twenty-nine thousand, two hundred ten".