20012211101131 has 2 divisors, whose sum is σ = 20012211101132. Its totient is φ = 20012211101130.

The previous prime is 20012211100963. The next prime is 20012211101149. The reversal of 20012211101131 is 13110111221002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20012211101131 - 2¹⁵ = 20012211068363 is a prime.

It is a super-2 number, since 2×20012211101131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20012211104131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006105550565 + 10006105550566.

It is an arithmetic number, because the mean of its divisors is an integer number (10006105550566).

Almost surely, 2^{20012211101131} is an apocalyptic number.

20012211101131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012211101131 is an equidigital number, since it uses as much as digits as its factorization.

20012211101131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 20012211101131 its reverse (13110111221002), we get a palindrome (33122322322133).

The spelling of 20012211101131 in words is "twenty trillion, twelve billion, two hundred eleven million, one hundred one thousand, one hundred thirty-one".