2100020112106 has 16 divisors (see below), whose sum is σ = 3600535559616. Its totient is φ = 899883349056.

The previous prime is 2100020112101. The next prime is 2100020112119. The reversal of 2100020112106 is 6012110200012.

It is a self number, because there is not a number n which added to its sum of digits gives 2100020112106.

It is not an unprimeable number, because it can be changed into a prime (2100020112101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10334991 + ... + 10536226.

It is an arithmetic number, because the mean of its divisors is an integer number (225033472476).

Almost surely, 2^{2100020112106} is an apocalyptic number.

2100020112106 is a deficient number, since it is larger than the sum of its proper divisors (1500515447510).

2100020112106 is a wasteful number, since it uses less digits than its factorization.

2100020112106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20878413.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2100020112106 its reverse (6012110200012), we get a palindrome (8112130312118).

The spelling of 2100020112106 in words is "two trillion, one hundred billion, twenty million, one hundred twelve thousand, one hundred six".