20111000020122 has 16 divisors (see below), whose sum is σ = 43878545498592. Its totient is φ = 6094242430320.

The previous prime is 20111000020117. The next prime is 20111000020127. The reversal of 20111000020122 is 22102000011102.

It is an interprime number because it is at equal distance from previous prime (20111000020117) and next prime (20111000020127).

It is a junction number, because it is equal to n+sod(n) for n = 20111000020098 and 20111000020107.

It is not an unprimeable number, because it can be changed into a prime (20111000020127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152356060693 + ... + 152356060824.

It is an arithmetic number, because the mean of its divisors is an integer number (2742409093662).

Almost surely, 2^{20111000020122} is an apocalyptic number.

20111000020122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20111000020122 is an abundant number, since it is smaller than the sum of its proper divisors (23767545478470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20111000020122 is a wasteful number, since it uses less digits than its factorization.

20111000020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304712121533.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20111000020122 its reverse (22102000011102), we get a palindrome (42213000031224).

The spelling of 20111000020122 in words is "twenty trillion, one hundred eleven billion, twenty thousand, one hundred twenty-two".