10201011111220 has 48 divisors (see below), whose sum is σ = 21922676189568. Its totient is φ = 3985081511040.

The previous prime is 10201011111199. The next prime is 10201011111241. The reversal of 10201011111220 is 2211111010201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10201011111199) and next prime (10201011111241).

It is a self number, because there is not a number n which added to its sum of digits gives 10201011111220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7398337 + ... + 8668183.

It is an arithmetic number, because the mean of its divisors is an integer number (456722420616).

Almost surely, 2^{10201011111220} is an apocalyptic number.

10201011111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10201011111220 is an abundant number, since it is smaller than the sum of its proper divisors (11721665078348).

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

10201011111220 is a wasteful number, since it uses less digits than its factorization.

10201011111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279240 (or 1279238 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10201011111220 its reverse (2211111010201), we get a palindrome (12412122121421).

The spelling of 10201011111220 in words is "ten trillion, two hundred one billion, eleven million, one hundred eleven thousand, two hundred twenty".