1401221233972 has 12 divisors (see below), whose sum is σ = 2802442468000. Its totient is φ = 600523385976.

The previous prime is 1401221233969. The next prime is 1401221234029. The reversal of 1401221233972 is 2793321221041.

1401221233972 is an admirable number.

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, 25021807722 + ... + 25021807777.

Almost surely, 2^{1401221233972} is an apocalyptic number.

It is an amenable number.

1401221233972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1401221233972 is a wasteful number, since it uses less digits than its factorization.

1401221233972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50043615510 (or 50043615508 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 1401221233972 in words is "one trillion, four hundred one billion, two hundred twenty-one million, two hundred thirty-three thousand, nine hundred seventy-two".