1001201850 has 96 divisors (see below), whose sum is σ = 3009718080. Its totient is φ = 242712000.

The previous prime is 1001201821. The next prime is 1001201869. The reversal of 1001201850 is 581021001.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18861 + ... + 48560.

It is an arithmetic number, because the mean of its divisors is an integer number (31351230).

Almost surely, 2^1001201850 is an apocalyptic number.

1001201850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001201850 is an abundant number, since it is smaller than the sum of its proper divisors (2008516230).

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

1001201850 is a wasteful number, since it uses less digits than its factorization.

1001201850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67453 (or 67442 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1001201850 is about 31641.7738124777. The cubic root of 1001201850 is about 1000.4004562800.

Adding to 1001201850 its reverse (581021001), we get a palindrome (1582222851).

The spelling of 1001201850 in words is "one billion, one million, two hundred one thousand, eight hundred fifty".