21122102020019 has 192 divisors, whose sum is σ = 30827672064000. Its totient is φ = 14185033632000.

The previous prime is 21122102020013. The next prime is 21122102020093. The reversal of 21122102020019 is 91002020122112.

It is not a de Polignac number, because 21122102020019 - 2²⁴ = 21122085242803 is a prime.

It is a super-2 number, since 2×21122102020019² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21122102019976 and 21122102020003.

It is not an unprimeable number, because it can be changed into a prime (21122102020013) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2834797244 + ... + 2834804694.

It is an arithmetic number, because the mean of its divisors is an integer number (160560792000).

Almost surely, 2^{21122102020019} is an apocalyptic number.

21122102020019 is a deficient number, since it is larger than the sum of its proper divisors (9705570043981).

21122102020019 is a wasteful number, since it uses less digits than its factorization.

21122102020019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7814 (or 7807 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 21122102020019 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred two million, twenty thousand, nineteen".