1200101101220 has 48 divisors (see below), whose sum is σ = 2916701437440. Its totient is φ = 406254835584.

The previous prime is 1200101101217. The next prime is 1200101101223. The reversal of 1200101101220 is 221011010021.

It is an interprime number because it is at equal distance from previous prime (1200101101217) and next prime (1200101101223).

It is not an unprimeable number, because it can be changed into a prime (1200101101223) 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, 54243059 + ... + 54265178.

It is an arithmetic number, because the mean of its divisors is an integer number (60764613280).

Almost surely, 2^{1200101101220} is an apocalyptic number.

1200101101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200101101220 is an abundant number, since it is smaller than the sum of its proper divisors (1716600336220).

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

1200101101220 is a wasteful number, since it uses less digits than its factorization.

1200101101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108508332 (or 108508330 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200101101220 its reverse (221011010021), we get a palindrome (1421112111241).

The spelling of 1200101101220 in words is "one trillion, two hundred billion, one hundred one million, one hundred one thousand, two hundred twenty".