122111001002 has 4 divisors (see below), whose sum is σ = 183166501506. Its totient is φ = 61055500500.

The previous prime is 122111000993. The next prime is 122111001031. The reversal of 122111001002 is 200100111221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200100111221 = 277 ⋅722383073.

It can be written as a sum of positive squares in only one way, i.e., 109176715561 + 12934285441 = 330419^2 + 113729^2 .

It is a super-2 number, since 2×122111001002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30527750249 + ... + 30527750252.

Almost surely, 2^122111001002 is an apocalyptic number.

122111001002 is a deficient number, since it is larger than the sum of its proper divisors (61055500504).

122111001002 is an equidigital number, since it uses as much as digits as its factorization.

122111001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61055500503.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 122111001002 its reverse (200100111221), we get a palindrome (322211112223).

The spelling of 122111001002 in words is "one hundred twenty-two billion, one hundred eleven million, one thousand, two".