20012120002 has 32 divisors (see below), whose sum is σ = 36152573184. Its totient is φ = 8122488000.

The previous prime is 20012119997. The next prime is 20012120003. The reversal of 20012120002 is 20002121002.

It is not an unprimeable number, because it can be changed into a prime (20012120003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275149 + ... + 340192.

It is an arithmetic number, because the mean of its divisors is an integer number (1129767912).

Almost surely, 2^20012120002 is an apocalyptic number.

20012120002 is a deficient number, since it is larger than the sum of its proper divisors (16140453182).

20012120002 is a wasteful number, since it uses less digits than its factorization.

20012120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615474.

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

Adding to 20012120002 its reverse (20002121002), we get a palindrome (40014241004).

The spelling of 20012120002 in words is "twenty billion, twelve million, one hundred twenty thousand, two".