1012021122210 has 144 divisors (see below), whose sum is σ = 2981931039936. Its totient is φ = 219144308544.

The previous prime is 1012021122209. The next prime is 1012021122221. The reversal of 1012021122210 is 122211202101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1012021122210.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 422862 + ... + 1484201.

It is an arithmetic number, because the mean of its divisors is an integer number (20707854444).

Almost surely, 2^{1012021122210} is an apocalyptic number.

1012021122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012021122210 is an abundant number, since it is smaller than the sum of its proper divisors (1969909917726).

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

1012021122210 is a wasteful number, since it uses less digits than its factorization.

1012021122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907125 (or 1907099 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1012021122210 its reverse (122211202101), we get a palindrome (1134232324311).

The spelling of 1012021122210 in words is "one trillion, twelve billion, twenty-one million, one hundred twenty-two thousand, two hundred ten".