1022211012 has 24 divisors (see below), whose sum is σ = 2385675936. Its totient is φ = 340663168.

The previous prime is 1022210989. The next prime is 1022211017. The reversal of 1022211012 is 2101122201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1022211017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104983 + ... + 114305.

It is an arithmetic number, because the mean of its divisors is an integer number (99403164).

Almost surely, 2^1022211012 is an apocalyptic number.

1022211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022211012 is an abundant number, since it is smaller than the sum of its proper divisors (1363464924).

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

1022211012 is a wasteful number, since it uses less digits than its factorization.

1022211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18467 (or 18465 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1022211012 is about 31972.0348429686. The cubic root of 1022211012 is about 1007.3495228512.

Adding to 1022211012 its reverse (2101122201), we get a palindrome (3123333213).

The spelling of 1022211012 in words is "one billion, twenty-two million, two hundred eleven thousand, twelve".