10221022212021 has 16 divisors (see below), whose sum is σ = 15183514694400. Its totient is φ = 6795448003584.

The previous prime is 10221022212017. The next prime is 10221022212031. The reversal of 10221022212021 is 12021222012201.

It is a happy number.

It is not a de Polignac number, because 10221022212021 - 2² = 10221022212017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10221022211985 and 10221022212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221022212031) 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, 515734476 + ... + 515754293.

It is an arithmetic number, because the mean of its divisors is an integer number (948969668400).

Almost surely, 2^{10221022212021} is an apocalyptic number.

It is an amenable number.

10221022212021 is a deficient number, since it is larger than the sum of its proper divisors (4962492482379).

10221022212021 is a wasteful number, since it uses less digits than its factorization.

10221022212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031489145 (or 1031489139 counting only the distinct ones).

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

Adding to 10221022212021 its reverse (12021222012201), we get a palindrome (22242244224222).

The spelling of 10221022212021 in words is "ten trillion, two hundred twenty-one billion, twenty-two million, two hundred twelve thousand, twenty-one".