122021200002 has 128 divisors (see below), whose sum is σ = 274729771008. Its totient is φ = 35876505600.

The previous prime is 122021199977. The next prime is 122021200009. The reversal of 122021200002 is 200002120221.

It is not an unprimeable number, because it can be changed into a prime (122021200009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71903218 + ... + 71904914.

It is an arithmetic number, because the mean of its divisors is an integer number (2146326336).

Almost surely, 2^122021200002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122021200002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137364885504).

122021200002 is an abundant number, since it is smaller than the sum of its proper divisors (152708571006).

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

122021200002 is a wasteful number, since it uses less digits than its factorization.

122021200002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104.

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

Adding to 122021200002 its reverse (200002120221), we get a palindrome (322023320223).

The spelling of 122021200002 in words is "one hundred twenty-two billion, twenty-one million, two hundred thousand, two".