20110101122 has 4 divisors (see below), whose sum is σ = 30165151686. Its totient is φ = 10055050560.

The previous prime is 20110101113. The next prime is 20110101173. The reversal of 20110101122 is 22110101102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22110101102 = 2 ⋅11055050551.

It can be written as a sum of positive squares in only one way, i.e., 19510781761 + 599319361 = 139681^2 + 24481^2 .

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 as a sum of consecutive naturals, namely, 5027525279 + ... + 5027525282.

Almost surely, 2^20110101122 is an apocalyptic number.

20110101122 is a deficient number, since it is larger than the sum of its proper divisors (10055050564).

20110101122 is a wasteful number, since it uses less digits than its factorization.

20110101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10055050563.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20110101122 its reverse (22110101102), we get a palindrome (42220202224).

The spelling of 20110101122 in words is "twenty billion, one hundred ten million, one hundred one thousand, one hundred twenty-two".