20010122002 has 16 divisors (see below), whose sum is σ = 32626141632. Its totient is φ = 9149127120.

The previous prime is 20010121997. The next prime is 20010122021. The reversal of 20010122002 is 20022101002.

It is a self number, because there is not a number n which added to its sum of digits gives 20010122002.

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, 3593574 + ... + 3599137.

It is an arithmetic number, because the mean of its divisors is an integer number (2039133852).

Almost surely, 2^20010122002 is an apocalyptic number.

20010122002 is a deficient number, since it is larger than the sum of its proper divisors (12616019630).

20010122002 is a wasteful number, since it uses less digits than its factorization.

20010122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7192833.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20010122002 its reverse (20022101002), we get a palindrome (40032223004).

The spelling of 20010122002 in words is "twenty billion, ten million, one hundred twenty-two thousand, two".