120001120221220 has 96 divisors (see below), whose sum is σ = 292645276358400. Its totient is φ = 40485175703040.

The previous prime is 120001120221211. The next prime is 120001120221251. The reversal of 120001120221220 is 22122021100021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120001120221194 and 120001120221203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24649711 + ... + 29113750.

It is an arithmetic number, because the mean of its divisors is an integer number (3048388295400).

Almost surely, 2^{120001120221220} is an apocalyptic number.

120001120221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120001120221220 is an abundant number, since it is smaller than the sum of its proper divisors (172644156137180).

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

120001120221220 is a wasteful number, since it uses less digits than its factorization.

120001120221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53763733 (or 53763731 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120001120221220 its reverse (22122021100021), we get a palindrome (142123141321241).

The spelling of 120001120221220 in words is "one hundred twenty trillion, one billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty".