121650770 has 16 divisors (see below), whose sum is σ = 219150360. Its totient is φ = 48620544.

The previous prime is 121650719. The next prime is 121650791. The reversal of 121650770 is 77056121.

It can be written as a sum of positive squares in 4 ways, for example, as 102475129 + 19175641 = 10123^2 + 4379^2 .

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, 10034 + ... + 18546.

Almost surely, 2^121650770 is an apocalyptic number.

121650770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121650770 is a deficient number, since it is larger than the sum of its proper divisors (97499590).

121650770 is a wasteful number, since it uses less digits than its factorization.

121650770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9949.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 121650770 is about 11029.5407882649. The cubic root of 121650770 is about 495.4938716110.

The spelling of 121650770 in words is "one hundred twenty-one million, six hundred fifty thousand, seven hundred seventy".