1051220412 has 54 divisors (see below), whose sum is σ = 2920792784. Its totient is φ = 318550320.

The previous prime is 1051220407. The next prime is 1051220461. The reversal of 1051220412 is 2140221501.

It is a super-2 number, since 2×1051220412² = 2210128709210899488, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 116308 + ... + 125019.

Almost surely, 2^1051220412 is an apocalyptic number.

1051220412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1051220412 is an abundant number, since it is smaller than the sum of its proper divisors (1869572372).

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

1051220412 is a wasteful number, since it uses less digits than its factorization.

1051220412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241359 (or 241343 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1051220412 is about 32422.5293892997. The cubic root of 1051220412 is about 1016.7899892088.

Adding to 1051220412 its reverse (2140221501), we get a palindrome (3191441913).

The spelling of 1051220412 in words is "one billion, fifty-one million, two hundred twenty thousand, four hundred twelve".