2722420721232 has 60 divisors (see below), whose sum is σ = 7651696531284. Its totient is φ = 903578826240.

The previous prime is 2722420721219. The next prime is 2722420721233. The reversal of 2722420721232 is 2321270242272.

2722420721232 is a `hidden beast` number, since 27 + 22 + 420 + 72 + 123 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 638682278976 + 2083738442256 = 799176^2 + 1443516^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722420721233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40536619 + ... + 40603722.

Almost surely, 2^{2722420721232} is an apocalyptic number.

It is an amenable number.

2722420721232 is an abundant number, since it is smaller than the sum of its proper divisors (4929275810052).

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

2722420721232 is a wasteful number, since it uses less digits than its factorization.

2722420721232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81140588 (or 81140579 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The spelling of 2722420721232 in words is "two trillion, seven hundred twenty-two billion, four hundred twenty million, seven hundred twenty-one thousand, two hundred thirty-two".