22012012222000 has 160 divisors (see below), whose sum is σ = 53969847744384. Its totient is φ = 8681665536000.

The previous prime is 22012012221977. The next prime is 22012012222093. The reversal of 22012012222000 is 22221021022.

It is a super-2 number, since 2×22012012222000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 549085957 + ... + 549126043.

Almost surely, 2^{22012012222000} is an apocalyptic number.

22012012222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22012012222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26984923872192).

22012012222000 is an abundant number, since it is smaller than the sum of its proper divisors (31957835522384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22012012222000 is a wasteful number, since it uses less digits than its factorization.

22012012222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43944 (or 43928 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22012012222000 its reverse (22221021022), we get a palindrome (22034233243022).

The spelling of 22012012222000 in words is "twenty-two trillion, twelve billion, twelve million, two hundred twenty-two thousand".