21122021022219 has 16 divisors (see below), whose sum is σ = 33698950919200. Its totient is φ = 12998166782688.

The previous prime is 21122021022211. The next prime is 21122021022227. The reversal of 21122021022219 is 91222012022112.

21122021022219 is a `hidden beast` number, since 2 + 1 + 1 + 220 + 210 + 2 + 221 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (21122021022211) and next prime (21122021022227).

It is not a de Polignac number, because 21122021022219 - 2³ = 21122021022211 is a prime.

It is a super-2 number, since 2×21122021022219² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21122021022192 and 21122021022201.

It is not an unprimeable number, because it can be changed into a prime (21122021022211) 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, 30088348684 + ... + 30088349385.

It is an arithmetic number, because the mean of its divisors is an integer number (2106184432450).

Almost surely, 2^{21122021022219} is an apocalyptic number.

21122021022219 is a deficient number, since it is larger than the sum of its proper divisors (12576929896981).

21122021022219 is a wasteful number, since it uses less digits than its factorization.

21122021022219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60176698091 (or 60176698085 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 21122021022219 in words is "twenty-one trillion, one hundred twenty-two billion, twenty-one million, twenty-two thousand, two hundred nineteen".