20122100212011 has 16 divisors (see below), whose sum is σ = 31094110591488. Its totient is φ = 11336394484800.

The previous prime is 20122100211977. The next prime is 20122100212021. The reversal of 20122100212011 is 11021200122102.

It is not a de Polignac number, because 20122100212011 - 2¹⁸ = 20122099949867 is a prime.

It is a super-2 number, since 2×20122100212011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20122100212021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6747852370 + ... + 6747855351.

It is an arithmetic number, because the mean of its divisors is an integer number (1943381911968).

Almost surely, 2^{20122100212011} is an apocalyptic number.

20122100212011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20122100212011 is a deficient number, since it is larger than the sum of its proper divisors (10972010379477).

20122100212011 is a wasteful number, since it uses less digits than its factorization.

20122100212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13495707802.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20122100212011 its reverse (11021200122102), we get a palindrome (31143300334113).

The spelling of 20122100212011 in words is "twenty trillion, one hundred twenty-two billion, one hundred million, two hundred twelve thousand, eleven".