20100212220269 has 2 divisors, whose sum is σ = 20100212220270. Its totient is φ = 20100212220268.

The previous prime is 20100212220211. The next prime is 20100212220311. The reversal of 20100212220269 is 96202221200102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18109748358025 + 1990463862244 = 4255555^2 + 1410838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20100212220269 is a prime.

It is a super-2 number, since 2×20100212220269² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20100212222269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050106110134 + 10050106110135.

It is an arithmetic number, because the mean of its divisors is an integer number (10050106110135).

Almost surely, 2^{20100212220269} is an apocalyptic number.

It is an amenable number.

20100212220269 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100212220269 is an equidigital number, since it uses as much as digits as its factorization.

20100212220269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 20100212220269 in words is "twenty trillion, one hundred billion, two hundred twelve million, two hundred twenty thousand, two hundred sixty-nine".