1201003223100 has 36 divisors (see below), whose sum is σ = 3474902659704. Its totient is φ = 320267526080.

The previous prime is 1201003223039. The next prime is 1201003223141. The reversal of 1201003223100 is 13223001021.

It is a super-2 number, since 2×1201003223100² (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 1201003223100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2001671739 + ... + 2001672338.

Almost surely, 2^{1201003223100} is an apocalyptic number.

1201003223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201003223100 is an abundant number, since it is smaller than the sum of its proper divisors (2273899436604).

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

1201003223100 is a wasteful number, since it uses less digits than its factorization.

1201003223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003344094 (or 4003344087 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1201003223100 its reverse (13223001021), we get a palindrome (1214226224121).

The spelling of 1201003223100 in words is "one trillion, two hundred one billion, three million, two hundred twenty-three thousand, one hundred".