779912102100122 has 16 divisors (see below), whose sum is σ = 1172689969574760. Its totient is φ = 389015629972992.

The previous prime is 779912102100119. The next prime is 779912102100139. The reversal of 779912102100122 is 221001201219977.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 373817824628161 + 406094277471961 = 19334369^2 + 20151781^2 .

It is a super-2 number, since 2×779912102100122² (a number of 31 digits) contains 22 as substring.

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, 37634393 + ... + 54554300.

Almost surely, 2^{779912102100122} is an apocalyptic number.

779912102100122 is a deficient number, since it is larger than the sum of its proper divisors (392777867474638).

779912102100122 is a wasteful number, since it uses less digits than its factorization.

779912102100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92198897.

The product of its (nonzero) digits is 63504, while the sum is 44.

The spelling of 779912102100122 in words is "seven hundred seventy-nine trillion, nine hundred twelve billion, one hundred two million, one hundred thousand, one hundred twenty-two".