1320221419990 has 32 divisors (see below), whose sum is σ = 2598208682400. Its totient is φ = 479011276800.

The previous prime is 1320221419987. The next prime is 1320221420047. The reversal of 1320221419990 is 999141220231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13315881 + ... + 13414660.

It is an arithmetic number, because the mean of its divisors is an integer number (81194021325).

Almost surely, 2^{1320221419990} is an apocalyptic number.

1320221419990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320221419990 is a deficient number, since it is larger than the sum of its proper divisors (1277987262410).

1320221419990 is a wasteful number, since it uses less digits than its factorization.

1320221419990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26731008.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 1320221419990 in words is "one trillion, three hundred twenty billion, two hundred twenty-one million, four hundred nineteen thousand, nine hundred ninety".