22212010112121 has 6 divisors (see below), whose sum is σ = 32084014606410. Its totient is φ = 14808006741408.

The previous prime is 22212010112113. The next prime is 22212010112167. The reversal of 22212010112121 is 12121101021222.

It can be written as a sum of positive squares in only one way, i.e., 13414492256400 + 8797517855721 = 3662580^2 + 2966061^2 .

It is not a de Polignac number, because 22212010112121 - 2³ = 22212010112113 is a prime.

It is a super-2 number, since 2×22212010112121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22212010112094 and 22212010112103.

It is not an unprimeable number, because it can be changed into a prime (22212010112111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1234000561776 + ... + 1234000561793.

It is an arithmetic number, because the mean of its divisors is an integer number (5347335767735).

Almost surely, 2^{22212010112121} is an apocalyptic number.

It is an amenable number.

22212010112121 is a deficient number, since it is larger than the sum of its proper divisors (9872004494289).

22212010112121 is a wasteful number, since it uses less digits than its factorization.

22212010112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2468001123575 (or 2468001123572 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22212010112121 its reverse (12121101021222), we get a palindrome (34333111133343).

The spelling of 22212010112121 in words is "twenty-two trillion, two hundred twelve billion, ten million, one hundred twelve thousand, one hundred twenty-one".