20122100222012 has 24 divisors (see below), whose sum is σ = 37291083530400. Its totient is φ = 9467695895040.

The previous prime is 20122100222009. The next prime is 20122100222027. The reversal of 20122100222012 is 21022200122102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23446289 + ... + 24289352.

It is an arithmetic number, because the mean of its divisors is an integer number (1553795147100).

Almost surely, 2^{20122100222012} is an apocalyptic number.

It is an amenable number.

20122100222012 is a deficient number, since it is larger than the sum of its proper divisors (17168983308388).

20122100222012 is a wasteful number, since it uses less digits than its factorization.

20122100222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47741861 (or 47741859 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20122100222012 its reverse (21022200122102), we get a palindrome (41144300344114).

The spelling of 20122100222012 in words is "twenty trillion, one hundred twenty-two billion, one hundred million, two hundred twenty-two thousand, twelve".