201002012220 has 48 divisors (see below), whose sum is σ = 562950194688. Its totient is φ = 53586768960.

The previous prime is 201002012213. The next prime is 201002012227. The reversal of 201002012220 is 22210200102.

It is an interprime number because it is at equal distance from previous prime (201002012213) and next prime (201002012227).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 201002012196 and 201002012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002012227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193624 + ... + 662943.

It is an arithmetic number, because the mean of its divisors is an integer number (11728129056).

Almost surely, 2^201002012220 is an apocalyptic number.

201002012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201002012220 is an abundant number, since it is smaller than the sum of its proper divisors (361948182468).

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

201002012220 is a wasteful number, since it uses less digits than its factorization.

201002012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860490 (or 860488 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 201002012220 its reverse (22210200102), we get a palindrome (223212212322).

The spelling of 201002012220 in words is "two hundred one billion, two million, twelve thousand, two hundred twenty".