22012010222221 has 16 divisors (see below), whose sum is σ = 22993511212800. Its totient is φ = 21045507150528.

The previous prime is 22012010222183. The next prime is 22012010222281. The reversal of 22012010222221 is 12222201021022.

It is a cyclic number.

It is not a de Polignac number, because 22012010222221 - 2¹⁵ = 22012010189453 is a prime.

It is a super-3 number, since 3×22012010222221³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012010222281) 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, 5906035 + ... + 8882863.

It is an arithmetic number, because the mean of its divisors is an integer number (1437094450800).

Almost surely, 2^{22012010222221} is an apocalyptic number.

It is an amenable number.

22012010222221 is a deficient number, since it is larger than the sum of its proper divisors (981500990579).

22012010222221 is a wasteful number, since it uses less digits than its factorization.

22012010222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979348.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22012010222221 its reverse (12222201021022), we get a palindrome (34234211243243).

The spelling of 22012010222221 in words is "twenty-two trillion, twelve billion, ten million, two hundred twenty-two thousand, two hundred twenty-one".