1201332031220 has 12 divisors (see below), whose sum is σ = 2522797265604. Its totient is φ = 480532812480.

The previous prime is 1201332031213. The next prime is 1201332031231. The reversal of 1201332031220 is 221302331021.

It can be written as a sum of positive squares in 2 ways, for example, as 172434223504 + 1028897807716 = 415252^2 + 1014346^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 60066601561 = 1201332031220 / (1 + 2 + 0 + 1 + 3 + 3 + 2 + 0 + 3 + 1 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1201332031192 and 1201332031201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30033300761 + ... + 30033300800.

It is an arithmetic number, because the mean of its divisors is an integer number (210233105467).

Almost surely, 2^{1201332031220} is an apocalyptic number.

1201332031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201332031220 is an abundant number, since it is smaller than the sum of its proper divisors (1321465234384).

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

1201332031220 is a wasteful number, since it uses less digits than its factorization.

1201332031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60066601570 (or 60066601568 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1201332031220 its reverse (221302331021), we get a palindrome (1422634362241).

The spelling of 1201332031220 in words is "one trillion, two hundred one billion, three hundred thirty-two million, thirty-one thousand, two hundred twenty".