212202211100020 has 48 divisors (see below), whose sum is σ = 453532459298688. Its totient is φ = 83383265589120.

The previous prime is 212202211099993. The next prime is 212202211100057. The reversal of 212202211100020 is 20001112202212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212202211099967 and 212202211100003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269350662 + ... + 270137341.

It is an arithmetic number, because the mean of its divisors is an integer number (9448592902056).

Almost surely, 2^{212202211100020} is an apocalyptic number.

212202211100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212202211100020 is an abundant number, since it is smaller than the sum of its proper divisors (241330248198668).

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

212202211100020 is a wasteful number, since it uses less digits than its factorization.

212202211100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539488360 (or 539488358 counting only the distinct ones).

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

Adding to 212202211100020 its reverse (20001112202212), we get a palindrome (232203323302232).

The spelling of 212202211100020 in words is "two hundred twelve trillion, two hundred two billion, two hundred eleven million, one hundred thousand, twenty".