1012222222020 has 72 divisors (see below), whose sum is σ = 3075153367104. Its totient is φ = 269508698688.

The previous prime is 1012222222007. The next prime is 1012222222031. The reversal of 1012222222020 is 202222222101.

It is a super-2 number, since 2×1012222222020² (a number of 25 digits) contains 22 as substring.

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 = 1012222221984 and 1012222222002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4229334 + ... + 4462253.

It is an arithmetic number, because the mean of its divisors is an integer number (42710463432).

Almost surely, 2^{1012222222020} is an apocalyptic number.

1012222222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012222222020 is an abundant number, since it is smaller than the sum of its proper divisors (2062931145084).

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

1012222222020 is a wasteful number, since it uses less digits than its factorization.

1012222222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8692249 (or 8692244 counting only the distinct ones).

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

Adding to 1012222222020 its reverse (202222222101), we get a palindrome (1214444444121).

The spelling of 1012222222020 in words is "one trillion, twelve billion, two hundred twenty-two million, two hundred twenty-two thousand, twenty".