1201001212220 has 12 divisors (see below), whose sum is σ = 2522102545704. Its totient is φ = 480400484880.

The previous prime is 1201001212217. The next prime is 1201001212297. The reversal of 1201001212220 is 222121001021.

It is a junction number, because it is equal to n+sod(n) for n = 1201001212195 and 1201001212204.

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, 30025030286 + ... + 30025030325.

It is an arithmetic number, because the mean of its divisors is an integer number (210175212142).

Almost surely, 2^{1201001212220} is an apocalyptic number.

1201001212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201001212220 is an abundant number, since it is smaller than the sum of its proper divisors (1321101333484).

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

1201001212220 is a wasteful number, since it uses less digits than its factorization.

1201001212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60050060620 (or 60050060618 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1201001212220 its reverse (222121001021), we get a palindrome (1423122213241).

The spelling of 1201001212220 in words is "one trillion, two hundred one billion, one million, two hundred twelve thousand, two hundred twenty".