20011102111010 has 32 divisors (see below), whose sum is σ = 37587103418880. Its totient is φ = 7656211176768.

The previous prime is 20011102110943. The next prime is 20011102111061. The reversal of 20011102111010 is 1011120111002.

It is a junction number, because it is equal to n+sod(n) for n = 20011102110982 and 20011102111000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7319336 + ... + 9674444.

It is an arithmetic number, because the mean of its divisors is an integer number (1174596981840).

Almost surely, 2^{20011102111010} is an apocalyptic number.

20011102111010 is a deficient number, since it is larger than the sum of its proper divisors (17576001307870).

20011102111010 is a wasteful number, since it uses less digits than its factorization.

20011102111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392082.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20011102111010 its reverse (1011120111002), we get a palindrome (21022222222012).

The spelling of 20011102111010 in words is "twenty trillion, eleven billion, one hundred two million, one hundred eleven thousand, ten".