122021004122 has 4 divisors (see below), whose sum is σ = 183031506186. Its totient is φ = 61010502060.

The previous prime is 122021004107. The next prime is 122021004143. The reversal of 122021004122 is 221400120221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 108722532361 + 13298471761 = 329731^2 + 115319^2 .

It is a super-2 number, since 2×122021004122² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122021004122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30505251029 + ... + 30505251032.

Almost surely, 2^122021004122 is an apocalyptic number.

122021004122 is a deficient number, since it is larger than the sum of its proper divisors (61010502064).

122021004122 is an equidigital number, since it uses as much as digits as its factorization.

122021004122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61010502063.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122021004122 its reverse (221400120221), we get a palindrome (343421124343).

The spelling of 122021004122 in words is "one hundred twenty-two billion, twenty-one million, four thousand, one hundred twenty-two".