911111120021002 has 8 divisors (see below), whose sum is σ = 1368881698963716. Its totient is φ = 454817220366432.

The previous prime is 911111120020979. The next prime is 911111120021023. The reversal of 911111120021002 is 200120021111119.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 632931052250641 + 278180067770361 = 25158121^2 + 16678731^2 .

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

It is a super-2 number, since 2×911111120021002² (a number of 31 digits) contains 22 as substring.

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, 369169820493 + ... + 369169822960.

Almost surely, 2^{911111120021002} is an apocalyptic number.

911111120021002 is a deficient number, since it is larger than the sum of its proper divisors (457770578942714).

911111120021002 is a wasteful number, since it uses less digits than its factorization.

911111120021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738339644072.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 911111120021002 in words is "nine hundred eleven trillion, one hundred eleven billion, one hundred twenty million, twenty-one thousand, two".