201150020 has 12 divisors (see below), whose sum is σ = 422415084. Its totient is φ = 80460000.

The previous prime is 201149981. The next prime is 201150031. The reversal of 201150020 is 20051102.

It can be written as a sum of positive squares in 2 ways, for example, as 37258816 + 163891204 = 6104^2 + 12802^2 .

It is a super-2 number, since 2×201150020² = 80922661092000800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201149983 and 201150010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5028731 + ... + 5028770.

It is an arithmetic number, because the mean of its divisors is an integer number (35201257).

Almost surely, 2^201150020 is an apocalyptic number.

201150020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201150020 is an abundant number, since it is smaller than the sum of its proper divisors (221265064).

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

201150020 is a wasteful number, since it uses less digits than its factorization.

201150020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057510 (or 10057508 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 201150020 is about 14182.7366893699. The cubic root of 201150020 is about 585.9222990237.

The spelling of 201150020 in words is "two hundred one million, one hundred fifty thousand, twenty".