522121245 has 16 divisors (see below), whose sum is σ = 857973120. Its totient is φ = 270938304.

The previous prime is 522121231. The next prime is 522121277. The reversal of 522121245 is 542121225.

522121245 = T₅₂₉₄ + T₅₂₉₅ + ... + T₅₃₃₀.

It is not a de Polignac number, because 522121245 - 2⁵ = 522121213 is a prime.

It is a super-2 number, since 2×522121245² = 545221188960700050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469825 + ... + 470934.

It is an arithmetic number, because the mean of its divisors is an integer number (53623320).

Almost surely, 2^522121245 is an apocalyptic number.

It is an amenable number.

522121245 is a deficient number, since it is larger than the sum of its proper divisors (335851875).

522121245 is a wasteful number, since it uses less digits than its factorization.

522121245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940804.

The product of its digits is 1600, while the sum is 24.

The square root of 522121245 is about 22849.9725382767. The cubic root of 522121245 is about 805.2371226409.

The spelling of 522121245 in words is "five hundred twenty-two million, one hundred twenty-one thousand, two hundred forty-five".