10211221122021 has 48 divisors (see below), whose sum is σ = 14956869058560. Its totient is φ = 6712402919040.

The previous prime is 10211221121957. The next prime is 10211221122023. The reversal of 10211221122021 is 12022112211201.

10211221122021 is a `hidden beast` number, since 1 + 0 + 211 + 2 + 211 + 220 + 21 = 666.

It is not a de Polignac number, because 10211221122021 - 2⁶ = 10211221121957 is a prime.

It is a super-2 number, since 2×10211221122021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10211221121985 and 10211221122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211221122023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1246635036 + ... + 1246643226.

It is an arithmetic number, because the mean of its divisors is an integer number (311601438720).

Almost surely, 2^{10211221122021} is an apocalyptic number.

It is an amenable number.

10211221122021 is a deficient number, since it is larger than the sum of its proper divisors (4745647936539).

10211221122021 is a wasteful number, since it uses less digits than its factorization.

10211221122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14186 (or 14183 counting only the distinct ones).

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

Adding to 10211221122021 its reverse (12022112211201), we get a palindrome (22233333333222).

The spelling of 10211221122021 in words is "ten trillion, two hundred eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, twenty-one".