20021202201131 has 2 divisors, whose sum is σ = 20021202201132. Its totient is φ = 20021202201130.

The previous prime is 20021202201101. The next prime is 20021202201139. The reversal of 20021202201131 is 13110220212002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20021202201131 - 2²⁶ = 20021135092267 is a prime.

It is a super-2 number, since 2×20021202201131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20021202201139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010601100565 + 10010601100566.

It is an arithmetic number, because the mean of its divisors is an integer number (10010601100566).

Almost surely, 2^{20021202201131} is an apocalyptic number.

20021202201131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021202201131 is an equidigital number, since it uses as much as digits as its factorization.

20021202201131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20021202201131 its reverse (13110220212002), we get a palindrome (33131422413133).

The spelling of 20021202201131 in words is "twenty trillion, twenty-one billion, two hundred two million, two hundred one thousand, one hundred thirty-one".