20100122002 has 16 divisors (see below), whose sum is σ = 31743936000. Its totient is φ = 9519040080.

The previous prime is 20100121997. The next prime is 20100122051. The reversal of 20100122002 is 20022100102.

It is a self number, because there is not a number n which added to its sum of digits gives 20100122002.

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, 127252 + ... + 237472.

It is an arithmetic number, because the mean of its divisors is an integer number (1983996000).

Almost surely, 2^20100122002 is an apocalyptic number.

20100122002 is a deficient number, since it is larger than the sum of its proper divisors (11643813998).

20100122002 is a wasteful number, since it uses less digits than its factorization.

20100122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115041.

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

Adding to 20100122002 its reverse (20022100102), we get a palindrome (40122222104).

The spelling of 20100122002 in words is "twenty billion, one hundred million, one hundred twenty-two thousand, two".