202211101220020 has 24 divisors (see below), whose sum is σ = 424714645470024. Its totient is φ = 80870853267456.

The previous prime is 202211101219973. The next prime is 202211101220033. The reversal of 202211101220020 is 20022101112202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10426105186704 + 191784996033316 = 3228948^2 + 13848646^2 .

It is a super-2 number, since 2×202211101220020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202211101219976 and 202211101220003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849079249 + ... + 849317368.

It is an arithmetic number, because the mean of its divisors is an integer number (17696443561251).

Almost surely, 2^{202211101220020} is an apocalyptic number.

202211101220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202211101220020 is an abundant number, since it is smaller than the sum of its proper divisors (222503544250004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202211101220020 is a wasteful number, since it uses less digits than its factorization.

202211101220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698402579 (or 1698402577 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202211101220020 its reverse (20022101112202), we get a palindrome (222233202332222).

The spelling of 202211101220020 in words is "two hundred two trillion, two hundred eleven billion, one hundred one million, two hundred twenty thousand, twenty".