1201332200220 has 144 divisors (see below), whose sum is σ = 3798835971840. Its totient is φ = 306951552000.

The previous prime is 1201332200219. The next prime is 1201332200231. The reversal of 1201332200220 is 220022331021.

1201332200220 is a `hidden beast` number, since 120 + 1 + 3 + 322 + 0 + 0 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1201332200193 and 1201332200202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 502225 + ... + 1629384.

It is an arithmetic number, because the mean of its divisors is an integer number (26380805360).

Almost surely, 2^{1201332200220} is an apocalyptic number.

1201332200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201332200220 is an abundant number, since it is smaller than the sum of its proper divisors (2597503771620).

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

1201332200220 is a wasteful number, since it uses less digits than its factorization.

1201332200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131756 (or 2131751 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1201332200220 its reverse (220022331021), we get a palindrome (1421354531241).

The spelling of 1201332200220 in words is "one trillion, two hundred one billion, three hundred thirty-two million, two hundred thousand, two hundred twenty".