122221000002 has 32 divisors (see below), whose sum is σ = 250063925760. Its totient is φ = 39813586560.

The previous prime is 122221000001. The next prime is 122221000021. The reversal of 122221000002 is 200000122221.

It is not an unprimeable number, because it can be changed into a prime (122221000001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1232274 + ... + 1327757.

It is an arithmetic number, because the mean of its divisors is an integer number (7814497680).

Almost surely, 2^122221000002 is an apocalyptic number.

122221000002 is an abundant number, since it is smaller than the sum of its proper divisors (127842925758).

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

122221000002 is a wasteful number, since it uses less digits than its factorization.

122221000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560218.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 122221000002 its reverse (200000122221), we get a palindrome (322221122223).

The spelling of 122221000002 in words is "one hundred twenty-two billion, two hundred twenty-one million, two", and thus it is an aban number.