247157426122 has 4 divisors (see below), whose sum is σ = 370736139186. Its totient is φ = 123578713060.

The previous prime is 247157426111. The next prime is 247157426137. The reversal of 247157426122 is 221624751742.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 154206221481 + 92951204641 = 392691^2 + 304879^2 .

It is a super-2 number, since 2×247157426122² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61789356529 + ... + 61789356532.

Almost surely, 2^247157426122 is an apocalyptic number.

247157426122 is a deficient number, since it is larger than the sum of its proper divisors (123578713064).

247157426122 is a wasteful number, since it uses less digits than its factorization.

247157426122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123578713063.

The product of its digits is 376320, while the sum is 43.

The spelling of 247157426122 in words is "two hundred forty-seven billion, one hundred fifty-seven million, four hundred twenty-six thousand, one hundred twenty-two".