1051555122 has 20 divisors (see below), whose sum is σ = 2356262766. Its totient is φ = 350518320.

The previous prime is 1051555121. The next prime is 1051555129. The reversal of 1051555122 is 2215551501.

1051555122 is a `hidden beast` number, since 105 + 1 + 5 + 551 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 724632561 + 326922561 = 26919^2 + 18081^2 .

It is a super-2 number, since 2×1051555122² = 2211536349208869768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1051555121) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3245379 + ... + 3245702.

Almost surely, 2^1051555122 is an apocalyptic number.

1051555122 is an abundant number, since it is smaller than the sum of its proper divisors (1304707644).

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

1051555122 is an equidigital number, since it uses as much as digits as its factorization.

1051555122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6491095 (or 6491086 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 1051555122 is about 32427.6906670827. The cubic root of 1051555122 is about 1016.8978935263.

The spelling of 1051555122 in words is "one billion, fifty-one million, five hundred fifty-five thousand, one hundred twenty-two".