20111102011010 has 16 divisors (see below), whose sum is σ = 36201204199872. Its totient is φ = 8044169564400.

The previous prime is 20111102010977. The next prime is 20111102011037. The reversal of 20111102011010 is 1011020111102.

It is a super-2 number, since 2×20111102011010² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20111102010982 and 20111102011000.

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, 33593456 + ... + 34186875.

It is an arithmetic number, because the mean of its divisors is an integer number (2262575262492).

Almost surely, 2^{20111102011010} is an apocalyptic number.

20111102011010 is a deficient number, since it is larger than the sum of its proper divisors (16090102188862).

20111102011010 is a wasteful number, since it uses less digits than its factorization.

20111102011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67810009.

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

Adding to 20111102011010 its reverse (1011020111102), we get a palindrome (21122122122112).

The spelling of 20111102011010 in words is "twenty trillion, one hundred eleven billion, one hundred two million, eleven thousand, ten".