2212211212020 has 72 divisors (see below), whose sum is σ = 6853147951104. Its totient is φ = 577371434688.

The previous prime is 2212211212009. The next prime is 2212211212027. The reversal of 2212211212020 is 202121122122.

It is a happy number.

2212211212020 is a `hidden beast` number, since 221 + 2 + 211 + 212 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2212211211984 and 2212211212002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212211212027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130736884 + ... + 130753803.

It is an arithmetic number, because the mean of its divisors is an integer number (95182610432).

Almost surely, 2^{2212211212020} is an apocalyptic number.

2212211212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212211212020 is an abundant number, since it is smaller than the sum of its proper divisors (4640936739084).

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

2212211212020 is a wasteful number, since it uses less digits than its factorization.

2212211212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261490749 (or 261490744 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2212211212020 its reverse (202121122122), we get a palindrome (2414332334142).

The spelling of 2212211212020 in words is "two trillion, two hundred twelve billion, two hundred eleven million, two hundred twelve thousand, twenty".