212020112221000 has 32 divisors (see below), whose sum is σ = 496127062599480. Its totient is φ = 84808044888000.

The previous prime is 212020112220937. The next prime is 212020112221003. The reversal of 212020112221000 is 122211020212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 50842005208164 + 161178107012836 = 7130358^2 + 12695594^2 .

It is not an unprimeable number, because it can be changed into a prime (212020112221003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106010055111 + ... + 106010057110.

Almost surely, 2^{212020112221000} is an apocalyptic number.

212020112221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020112221000 is an abundant number, since it is smaller than the sum of its proper divisors (284106950378480).

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

212020112221000 is a wasteful number, since it uses less digits than its factorization.

212020112221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212020112242 (or 212020112228 counting only the distinct ones).

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

Adding to 212020112221000 its reverse (122211020212), we get a palindrome (212142323241212).

The spelling of 212020112221000 in words is "two hundred twelve trillion, twenty billion, one hundred twelve million, two hundred twenty-one thousand".