1012201223100 has 72 divisors (see below), whose sum is σ = 2928800961408. Its totient is φ = 269905080000.

The previous prime is 1012201223083. The next prime is 1012201223197. The reversal of 1012201223100 is 13221022101.

It is a super-2 number, since 2×1012201223100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1012201223100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5839887 + ... + 6010713.

Almost surely, 2^{1012201223100} is an apocalyptic number.

1012201223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012201223100 is an abundant number, since it is smaller than the sum of its proper divisors (1916599738308).

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

1012201223100 is a wasteful number, since it uses less digits than its factorization.

1012201223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190595 (or 190588 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1012201223100 its reverse (13221022101), we get a palindrome (1025422245201).

The spelling of 1012201223100 in words is "one trillion, twelve billion, two hundred one million, two hundred twenty-three thousand, one hundred".