20919200110 has 16 divisors (see below), whose sum is σ = 37660104000. Its totient is φ = 8366448096.

The previous prime is 20919200069. The next prime is 20919200123. The reversal of 20919200110 is 1100291902.

It is a super-2 number, since 2×20919200110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 81030 + ... + 220009.

It is an arithmetic number, because the mean of its divisors is an integer number (2353756500).

Almost surely, 2^20919200110 is an apocalyptic number.

20919200110 is a deficient number, since it is larger than the sum of its proper divisors (16740903890).

20919200110 is a wasteful number, since it uses less digits than its factorization.

20919200110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307995.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 20919200110 in words is "twenty billion, nine hundred nineteen million, two hundred thousand, one hundred ten".