722121003 has 12 divisors (see below), whose sum is σ = 1045332288. Its totient is φ = 480366960.

The previous prime is 722120981. The next prime is 722121031. The reversal of 722121003 is 300121227.

It is not a de Polignac number, because 722121003 - 2⁶ = 722120939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (722111003) 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, 82875 + ... + 91172.

It is an arithmetic number, because the mean of its divisors is an integer number (87111024).

Almost surely, 2^722121003 is an apocalyptic number.

722121003 is a deficient number, since it is larger than the sum of its proper divisors (323211285).

722121003 is a wasteful number, since it uses less digits than its factorization.

722121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174514 (or 174511 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 722121003 is about 26872.3092234367. The cubic root of 722121003 is about 897.1601858568.

It can be divided in two parts, 7221 and 21003, that added together give a square (28224 = 168²).

The spelling of 722121003 in words is "seven hundred twenty-two million, one hundred twenty-one thousand, three".