122220111211000 has 256 divisors, whose sum is σ = 315147225294720. Its totient is φ = 43994764800000.

The previous prime is 122220111210973. The next prime is 122220111211139. The reversal of 122220111211000 is 112111022221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8306939644 + ... + 8306954356.

Almost surely, 2^{122220111211000} is an apocalyptic number.

122220111211000 is a gapful number since it is divisible by the number (10) 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 122220111211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157573612647360).

122220111211000 is an abundant number, since it is smaller than the sum of its proper divisors (192927114083720).

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

122220111211000 is a wasteful number, since it uses less digits than its factorization.

122220111211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22323 (or 22309 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122220111211000 its reverse (112111022221), we get a palindrome (122332222233221).

The spelling of 122220111211000 in words is "one hundred twenty-two trillion, two hundred twenty billion, one hundred eleven million, two hundred eleven thousand".