1050221700 has 216 divisors, whose sum is σ = 3725074080. Its totient is φ = 254534400.

The previous prime is 1050221651. The next prime is 1050221701. The reversal of 1050221700 is 71220501.

It is a super-2 number, since 2×1050221700² = 2205931238301780000, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1050221701) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 265336 + ... + 269264.

Almost surely, 2^1050221700 is an apocalyptic number.

1050221700 is a gapful number since it is divisible by the number (10) 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 1050221700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1862537040).

1050221700 is an abundant number, since it is smaller than the sum of its proper divisors (2674852380).

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

1050221700 is a wasteful number, since it uses less digits than its factorization.

1050221700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969 (or 3950 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 1050221700 is about 32407.1242167521. The cubic root of 1050221700 is about 1016.4678867243.

The spelling of 1050221700 in words is "one billion, fifty million, two hundred twenty-one thousand, seven hundred".