21122100219203 has 2 divisors, whose sum is σ = 21122100219204. Its totient is φ = 21122100219202.

The previous prime is 21122100219163. The next prime is 21122100219277. The reversal of 21122100219203 is 30291200122112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21122100219203 - 2¹² = 21122100215107 is a prime.

It is a super-2 number, since 2×21122100219203² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21122100249203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561050109601 + 10561050109602.

It is an arithmetic number, because the mean of its divisors is an integer number (10561050109602).

Almost surely, 2^{21122100219203} is an apocalyptic number.

21122100219203 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122100219203 is an equidigital number, since it uses as much as digits as its factorization.

21122100219203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 21122100219203 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred million, two hundred nineteen thousand, two hundred three".