22111212012046 has 128 divisors (see below), whose sum is σ = 37256454144000. Its totient is φ = 9794500974720.

The previous prime is 22111212012031. The next prime is 22111212012047. The reversal of 22111212012046 is 64021021211122.

It is a super-2 number, since 2×22111212012046² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22111212012046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111212012047) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2240012491 + ... + 2240022361.

It is an arithmetic number, because the mean of its divisors is an integer number (291066048000).

Almost surely, 2^{22111212012046} is an apocalyptic number.

22111212012046 is a deficient number, since it is larger than the sum of its proper divisors (15145242131954).

22111212012046 is a wasteful number, since it uses less digits than its factorization.

22111212012046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10334.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 22111212012046 its reverse (64021021211122), we get a palindrome (86132233223168).

The spelling of 22111212012046 in words is "twenty-two trillion, one hundred eleven billion, two hundred twelve million, twelve thousand, forty-six".