1022204412 has 72 divisors (see below), whose sum is σ = 2683611840. Its totient is φ = 327680640.

The previous prime is 1022204411. The next prime is 1022204429. The reversal of 1022204412 is 2144022201.

1022204412 is a `hidden beast` number, since 1 + 0 + 2 + 220 + 441 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022204411) 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, 281118 + ... + 284730.

Almost surely, 2^1022204412 is an apocalyptic number.

1022204412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022204412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341805920).

1022204412 is an abundant number, since it is smaller than the sum of its proper divisors (1661407428).

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

1022204412 is a wasteful number, since it uses less digits than its factorization.

1022204412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923 (or 3918 counting only the distinct ones).

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

The square root of 1022204412 is about 31971.9316276011. The cubic root of 1022204412 is about 1007.3473548314.

Adding to 1022204412 its reverse (2144022201), we get a palindrome (3166226613).

The spelling of 1022204412 in words is "one billion, twenty-two million, two hundred four thousand, four hundred twelve".