20111122002 has 16 divisors (see below), whose sum is σ = 40223905632. Its totient is φ = 6703430400.

The previous prime is 20111121991. The next prime is 20111122013. The reversal of 20111122002 is 20022111102.

It is an interprime number because it is at equal distance from previous prime (20111121991) and next prime (20111122013).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134002 + ... + 241202.

It is an arithmetic number, because the mean of its divisors is an integer number (2513994102).

Almost surely, 2^20111122002 is an apocalyptic number.

20111122002 is an abundant number, since it is smaller than the sum of its proper divisors (20112783630).

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

20111122002 is a wasteful number, since it uses less digits than its factorization.

20111122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138473.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20111122002 its reverse (20022111102), we get a palindrome (40133233104).

The spelling of 20111122002 in words is "twenty billion, one hundred eleven million, one hundred twenty-two thousand, two".