22221121120012 has 6 divisors (see below), whose sum is σ = 38886961960028. Its totient is φ = 11110560560004.

The previous prime is 22221121119959. The next prime is 22221121120091. The reversal of 22221121120012 is 21002112112222.

It is a super-2 number, since 2×22221121120012² (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, 2777640139998 + ... + 2777640140005.

Almost surely, 2^{22221121120012} is an apocalyptic number.

It is an amenable number.

22221121120012 is a deficient number, since it is larger than the sum of its proper divisors (16665840840016).

22221121120012 is a wasteful number, since it uses less digits than its factorization.

22221121120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555280280007 (or 5555280280005 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22221121120012 its reverse (21002112112222), we get a palindrome (43223233232234).

The spelling of 22221121120012 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twenty thousand, twelve".