11021720126 has 8 divisors (see below), whose sum is σ = 17505084960. Its totient is φ = 5186691808.

The previous prime is 11021720119. The next prime is 11021720153. The reversal of 11021720126 is 62102712011.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 162084086 + ... + 162084153.

It is an arithmetic number, because the mean of its divisors is an integer number (2188135620).

Almost surely, 2^11021720126 is an apocalyptic number.

11021720126 is a deficient number, since it is larger than the sum of its proper divisors (6483364834).

11021720126 is a wasteful number, since it uses less digits than its factorization.

11021720126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324168258.

The product of its (nonzero) digits is 336, while the sum is 23.

The spelling of 11021720126 in words is "eleven billion, twenty-one million, seven hundred twenty thousand, one hundred twenty-six".