20111010212122 has 8 divisors (see below), whose sum is σ = 30661048356372. Its totient is φ = 9890660760000.

The previous prime is 20111010212023. The next prime is 20111010212141. The reversal of 20111010212122 is 22121201011102.

It can be written as a sum of positive squares in 2 ways, for example, as 19382191155441 + 728819056681 = 4402521^2 + 853709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20111010212096 and 20111010212105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82422172879 + ... + 82422173122.

Almost surely, 2^{20111010212122} is an apocalyptic number.

20111010212122 is a deficient number, since it is larger than the sum of its proper divisors (10550038144250).

20111010212122 is a wasteful number, since it uses less digits than its factorization.

20111010212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164844346064.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20111010212122 its reverse (22121201011102), we get a palindrome (42232211223224).

The spelling of 20111010212122 in words is "twenty trillion, one hundred eleven billion, ten million, two hundred twelve thousand, one hundred twenty-two".