22220100200120 has 32 divisors (see below), whose sum is σ = 49995384872400. Its totient is φ = 8888011738368.

The previous prime is 22220100200117. The next prime is 22220100200143. The reversal of 22220100200120 is 2100200102222.

It is a junction number, because it is equal to n+sod(n) for n = 22220100200095 and 22220100200104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15606692 + ... + 16970828.

Almost surely, 2^{22220100200120} is an apocalyptic number.

22220100200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220100200120 is an abundant number, since it is smaller than the sum of its proper divisors (27775284672280).

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

22220100200120 is a wasteful number, since it uses less digits than its factorization.

22220100200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771367 (or 1771363 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22220100200120 its reverse (2100200102222), we get a palindrome (24320300302342).

The spelling of 22220100200120 in words is "twenty-two trillion, two hundred twenty billion, one hundred million, two hundred thousand, one hundred twenty".