2122210121200 has 120 divisors (see below), whose sum is σ = 5594411497248. Its totient is φ = 768800547840.

The previous prime is 2122210121159. The next prime is 2122210121231. The reversal of 2122210121200 is 21210122212.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3574564 + ... + 4125763.

Almost surely, 2^{2122210121200} is an apocalyptic number.

2122210121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122210121200 is an abundant number, since it is smaller than the sum of its proper divisors (3472201376048).

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

2122210121200 is a wasteful number, since it uses less digits than its factorization.

2122210121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7700411 (or 7700400 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2122210121200 its reverse (21210122212), we get a palindrome (2143420243412).

It can be divided in two parts, 212221012 and 1200, that added together give a palindrome (212222212).

The spelling of 2122210121200 in words is "two trillion, one hundred twenty-two billion, two hundred ten million, one hundred twenty-one thousand, two hundred".