22212020012101 has 16 divisors (see below), whose sum is σ = 22839395367600. Its totient is φ = 21588861081600.

The previous prime is 22212020012057. The next prime is 22212020012227. The reversal of 22212020012101 is 10121002021222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2707439884900 + 19504580127201 = 1645430^2 + 4416399^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212020012101 - 2³³ = 22203430077509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212020010101) 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, 11890915 + ... + 13631503.

It is an arithmetic number, because the mean of its divisors is an integer number (1427462210475).

Almost surely, 2^{22212020012101} is an apocalyptic number.

It is an amenable number.

22212020012101 is a deficient number, since it is larger than the sum of its proper divisors (627375355499).

22212020012101 is a wasteful number, since it uses less digits than its factorization.

22212020012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741800.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22212020012101 its reverse (10121002021222), we get a palindrome (32333022033323).

The spelling of 22212020012101 in words is "twenty-two trillion, two hundred twelve billion, twenty million, twelve thousand, one hundred one".