122211210000 has 600 divisors, whose sum is σ = 438649862112. Its totient is φ = 29286400000.

The previous prime is 122211209977. The next prime is 122211210013. The reversal of 122211210000 is 12112221.

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 475529872 + ... + 475530128.

Almost surely, 2^122211210000 is an apocalyptic number.

122211210000 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 122211210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219324931056).

122211210000 is an abundant number, since it is smaller than the sum of its proper divisors (316438652112).

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

122211210000 is a wasteful number, since it uses less digits than its factorization.

122211210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 122211210000 its reverse (12112221), we get a palindrome (122223322221).

It can be divided in two parts, 12221 and 1210000, that added together give a palindrome (1222221).

The spelling of 122211210000 in words is "one hundred twenty-two billion, two hundred eleven million, two hundred ten thousand".