20126233772122 has 4 divisors (see below), whose sum is σ = 30189350658186. Its totient is φ = 10063116886060.

The previous prime is 20126233772111. The next prime is 20126233772143. The reversal of 20126233772122 is 22127733262102.

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., 11663597870401 + 8462635901721 = 3415201^2 + 2909061^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5031558443029 + ... + 5031558443032.

Almost surely, 2^{20126233772122} is an apocalyptic number.

20126233772122 is a deficient number, since it is larger than the sum of its proper divisors (10063116886064).

20126233772122 is a wasteful number, since it uses less digits than its factorization.

20126233772122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063116886063.

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 20126233772122 in words is "twenty trillion, one hundred twenty-six billion, two hundred thirty-three million, seven hundred seventy-two thousand, one hundred twenty-two".