122222021011002 has 160 divisors (see below), whose sum is σ = 316521184883904. Its totient is φ = 34838293363200.

The previous prime is 122222021010923. The next prime is 122222021011009. The reversal of 122222021011002 is 200110120222221.

It is a happy number.

122222021011002 is a `hidden beast` number, since 1 + 222 + 220 + 210 + 1 + 10 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (122222021011009) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 51583173 + ... + 53900535.

Almost surely, 2^{122222021011002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122222021011002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158260592441952).

122222021011002 is an abundant number, since it is smaller than the sum of its proper divisors (194299163872902).

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

122222021011002 is a wasteful number, since it uses less digits than its factorization.

122222021011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319146 (or 2319137 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122222021011002 its reverse (200110120222221), we get a palindrome (322332141233223).

It can be divided in two parts, 1222220 and 21011002, that added together give a palindrome (22233222).

The spelling of 122222021011002 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, twenty-one million, eleven thousand, two".