1010212220 has 12 divisors (see below), whose sum is σ = 2121445704. Its totient is φ = 404084880.

The previous prime is 1010212207. The next prime is 1010212237. The reversal of 1010212220 is 222120101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25255286 + ... + 25255325.

It is an arithmetic number, because the mean of its divisors is an integer number (176787142).

Almost surely, 2^1010212220 is an apocalyptic number.

1010212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010212220 is an abundant number, since it is smaller than the sum of its proper divisors (1111233484).

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

1010212220 is a wasteful number, since it uses less digits than its factorization.

1010212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50510620 (or 50510618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1010212220 is about 31783.8358289241. The cubic root of 1010212220 is about 1003.3925509162.

Adding to 1010212220 its reverse (222120101), we get a palindrome (1232332321).

It can be divided in two parts, 10102 and 12220, that added together give a palindrome (22322).

The spelling of 1010212220 in words is "one billion, ten million, two hundred twelve thousand, two hundred twenty".