20211132200377 has 2 divisors, whose sum is σ = 20211132200378. Its totient is φ = 20211132200376.

The previous prime is 20211132200263. The next prime is 20211132200381. The reversal of 20211132200377 is 77300223111202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17225645843641 + 2985486356736 = 4150379^2 + 1727856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20211132200377 is a prime.

It is a super-2 number, since 2×20211132200377² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20211132207377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105566100188 + 10105566100189.

It is an arithmetic number, because the mean of its divisors is an integer number (10105566100189).

Almost surely, 2^{20211132200377} is an apocalyptic number.

It is an amenable number.

20211132200377 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211132200377 is an equidigital number, since it uses as much as digits as its factorization.

20211132200377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

Adding to 20211132200377 its reverse (77300223111202), we get a palindrome (97511355311579).

The spelling of 20211132200377 in words is "twenty trillion, two hundred eleven billion, one hundred thirty-two million, two hundred thousand, three hundred seventy-seven".