11901223005628 has 12 divisors (see below), whose sum is σ = 22720516647192. Its totient is φ = 5409646820720.

The previous prime is 11901223005577. The next prime is 11901223005643. The reversal of 11901223005628 is 82650032210911.

It is a happy number.

It is a super-2 number, since 2×11901223005628² (a number of 27 digits) contains 22 as substring.

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, 135241170475 + ... + 135241170562.

It is an arithmetic number, because the mean of its divisors is an integer number (1893376387266).

Almost surely, 2^{11901223005628} is an apocalyptic number.

It is an amenable number.

11901223005628 is a deficient number, since it is larger than the sum of its proper divisors (10819293641564).

11901223005628 is a wasteful number, since it uses less digits than its factorization.

11901223005628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270482341052 (or 270482341050 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 11901223005628 in words is "eleven trillion, nine hundred one billion, two hundred twenty-three million, five thousand, six hundred twenty-eight".