10221111022021 has 16 divisors (see below), whose sum is σ = 10544531332608. Its totient is φ = 9901390838400.

The previous prime is 10221111021959. The next prime is 10221111022049. The reversal of 10221111022021 is 12022011112201.

It is a cyclic number.

It is not a de Polignac number, because 10221111022021 - 2⁷ = 10221111021893 is a prime.

It is a super-2 number, since 2×10221111022021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10221111021986 and 10221111022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221111022121) 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, 3736996 + ... + 5865778.

It is an arithmetic number, because the mean of its divisors is an integer number (659033208288).

Almost surely, 2^{10221111022021} is an apocalyptic number.

It is an amenable number.

10221111022021 is a deficient number, since it is larger than the sum of its proper divisors (323420310587).

10221111022021 is a wasteful number, since it uses less digits than its factorization.

10221111022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129652.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10221111022021 its reverse (12022011112201), we get a palindrome (22243122134222).

The spelling of 10221111022021 in words is "ten trillion, two hundred twenty-one billion, one hundred eleven million, twenty-two thousand, twenty-one".