2222212021020 has 72 divisors (see below), whose sum is σ = 6748575737904. Its totient is φ = 591898361088.

The previous prime is 2222212021019. The next prime is 2222212021027. The reversal of 2222212021020 is 201202122222.

2222212021020 is a `hidden beast` number, since 2 + 222 + 212 + 0 + 210 + 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 = 2222212020984 and 2222212021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222212021027) 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, 7048554 + ... + 7357073.

It is an arithmetic number, because the mean of its divisors is an integer number (93730218582).

Almost surely, 2^{2222212021020} is an apocalyptic number.

2222212021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222212021020 is an abundant number, since it is smaller than the sum of its proper divisors (4526363716884).

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

2222212021020 is a wasteful number, since it uses less digits than its factorization.

2222212021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14406499 (or 14406494 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2222212021020 its reverse (201202122222), we get a palindrome (2423414143242).

It can be divided in two parts, 222221202 and 1020, that added together give a palindrome (222222222).

The spelling of 2222212021020 in words is "two trillion, two hundred twenty-two billion, two hundred twelve million, twenty-one thousand, twenty".