10022022121221 has 72 divisors (see below), whose sum is σ = 17580429397440. Its totient is φ = 5468110728960.

The previous prime is 10022022121217. The next prime is 10022022121333. The reversal of 10022022121221 is 12212122022001.

It is a happy number.

10022022121221 is a `hidden beast` number, since 1 + 0 + 0 + 220 + 221 + 2 + 1 + 221 = 666.

It is not a de Polignac number, because 10022022121221 - 2² = 10022022121217 is a prime.

It is a super-3 number, since 3×10022022121221³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10022022121194 and 10022022121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022022521221) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11342691 + ... + 12194288.

It is an arithmetic number, because the mean of its divisors is an integer number (244172630520).

Almost surely, 2^{10022022121221} is an apocalyptic number.

10022022121221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10022022121221 is a deficient number, since it is larger than the sum of its proper divisors (7558407276219).

10022022121221 is a wasteful number, since it uses less digits than its factorization.

10022022121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23537047 (or 23537033 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10022022121221 its reverse (12212122022001), we get a palindrome (22234144143222).

The spelling of 10022022121221 in words is "ten trillion, twenty-two billion, twenty-two million, one hundred twenty-one thousand, two hundred twenty-one".