1202111201220 has 96 divisors (see below), whose sum is σ = 3387818165760. Its totient is φ = 318482841600.

The previous prime is 1202111201219. The next prime is 1202111201231. The reversal of 1202111201220 is 221021112021.

It is a super-3 number, since 3×1202111201220³ (a number of 37 digits) contains 333 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 1202111201220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6112420 + ... + 6306020.

It is an arithmetic number, because the mean of its divisors is an integer number (35289772560).

Almost surely, 2^{1202111201220} is an apocalyptic number.

1202111201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202111201220 is an abundant number, since it is smaller than the sum of its proper divisors (2185706964540).

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

1202111201220 is a wasteful number, since it uses less digits than its factorization.

1202111201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194285 (or 194283 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1202111201220 its reverse (221021112021), we get a palindrome (1423132313241).

The spelling of 1202111201220 in words is "one trillion, two hundred two billion, one hundred eleven million, two hundred one thousand, two hundred twenty".