1220207113450 has 96 divisors (see below), whose sum is σ = 2458659260736. Its totient is φ = 447870504960.

The previous prime is 1220207113427. The next prime is 1220207113451. The reversal of 1220207113450 is 543117020221.

It is not an unprimeable number, because it can be changed into a prime (1220207113451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224176429 + ... + 224181871.

It is an arithmetic number, because the mean of its divisors is an integer number (25611033966).

Almost surely, 2^{1220207113450} is an apocalyptic number.

1220207113450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220207113450 is an abundant number, since it is smaller than the sum of its proper divisors (1238452147286).

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

1220207113450 is a wasteful number, since it uses less digits than its factorization.

1220207113450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448 (or 7443 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 1220207113450 in words is "one trillion, two hundred twenty billion, two hundred seven million, one hundred thirteen thousand, four hundred fifty".