20121011000122 has 4 divisors (see below), whose sum is σ = 30181516500186. Its totient is φ = 10060505500060.

The previous prime is 20121011000093. The next prime is 20121011000161. The reversal of 20121011000122 is 22100011012102.

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., 15140744814321 + 4980266185801 = 3891111^2 + 2231651^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030252750029 + ... + 5030252750032.

Almost surely, 2^{20121011000122} is an apocalyptic number.

20121011000122 is a deficient number, since it is larger than the sum of its proper divisors (10060505500064).

20121011000122 is a wasteful number, since it uses less digits than its factorization.

20121011000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10060505500063.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20121011000122 its reverse (22100011012102), we get a palindrome (42221022012224).

The spelling of 20121011000122 in words is "twenty trillion, one hundred twenty-one billion, eleven million, one hundred twenty-two", and thus it is an aban number.