22221201022112 has 12 divisors (see below), whose sum is σ = 43747989512346. Its totient is φ = 11110600511040.

The previous prime is 22221201022087. The next prime is 22221201022127. The reversal of 22221201022112 is 21122010212222.

It can be written as a sum of positive squares in only one way, i.e., 15391529625616 + 6829671396496 = 3923204^2 + 2613364^2 .

It is a super-2 number, since 2×22221201022112² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347206265939 + ... + 347206266002.

Almost surely, 2^{22221201022112} is an apocalyptic number.

It is an amenable number.

22221201022112 is a deficient number, since it is larger than the sum of its proper divisors (21526788490234).

22221201022112 is an equidigital number, since it uses as much as digits as its factorization.

22221201022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694412531951 (or 694412531943 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22221201022112 its reverse (21122010212222), we get a palindrome (43343211234334).

The spelling of 22221201022112 in words is "twenty-two trillion, two hundred twenty-one billion, two hundred one million, twenty-two thousand, one hundred twelve".