122212121222000 has 160 divisors (see below), whose sum is σ = 306640114919424. Its totient is φ = 47075482272000.

The previous prime is 122212121221987. The next prime is 122212121222119. The reversal of 122212121222000 is 222121212221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 3901544 + ... + 16113543.

Almost surely, 2^{122212121222000} is an apocalyptic number.

122212121222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122212121222000 is an abundant number, since it is smaller than the sum of its proper divisors (184427993697424).

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

122212121222000 is a wasteful number, since it uses less digits than its factorization.

122212121222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20015224 (or 20015208 counting only the distinct ones).

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

Adding to 122212121222000 its reverse (222121212221), we get a palindrome (122434242434221).

The spelling of 122212121222000 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred twenty-one million, two hundred twenty-two thousand".