722015011 has 4 divisors (see below), whose sum is σ = 753406992. Its totient is φ = 690623032.

The previous prime is 722014957. The next prime is 722015023. The reversal of 722015011 is 110510227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 722015011 - 2⁷ = 722014883 is a prime.

It is a super-2 number, since 2×722015011² = 1042611352218660242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722015011.

It is not an unprimeable number, because it can be changed into a prime (722015051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15695956 + ... + 15696001.

It is an arithmetic number, because the mean of its divisors is an integer number (188351748).

Almost surely, 2^722015011 is an apocalyptic number.

722015011 is a deficient number, since it is larger than the sum of its proper divisors (31391981).

722015011 is a wasteful number, since it uses less digits than its factorization.

722015011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31391980.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 722015011 is about 26870.3370094236. The cubic root of 722015011 is about 897.1162890330.

Adding to 722015011 its reverse (110510227), we get a palindrome (832525238).

The spelling of 722015011 in words is "seven hundred twenty-two million, fifteen thousand, eleven".