1201102220220 has 96 divisors (see below), whose sum is σ = 3846004098048. Its totient is φ = 274360722432.

The previous prime is 1201102220207. The next prime is 1201102220233. The reversal of 1201102220220 is 220222011021.

It is an interprime number because it is at equal distance from previous prime (1201102220207) and next prime (1201102220233).

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 1201102220220.

It is a congruent number.

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, 268464 + ... + 1572983.

It is an arithmetic number, because the mean of its divisors is an integer number (40062542688).

Almost surely, 2^{1201102220220} is an apocalyptic number.

1201102220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201102220220 is an abundant number, since it is smaller than the sum of its proper divisors (2644901877828).

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

1201102220220 is a wasteful number, since it uses less digits than its factorization.

1201102220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843019 (or 1843017 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1201102220220 its reverse (220222011021), we get a palindrome (1421324231241).

The spelling of 1201102220220 in words is "one trillion, two hundred one billion, one hundred two million, two hundred twenty thousand, two hundred twenty".