111010102221 has 32 divisors (see below), whose sum is σ = 169427237760. Its totient is φ = 64203964416.

The previous prime is 111010102141. The next prime is 111010102267. The reversal of 111010102221 is 122201010111.

It is not a de Polignac number, because 111010102221 - 2¹⁵ = 111010069453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111010102197 and 111010102206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010102121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1512276 + ... + 1583981.

It is an arithmetic number, because the mean of its divisors is an integer number (5294601180).

Almost surely, 2^111010102221 is an apocalyptic number.

It is an amenable number.

111010102221 is a deficient number, since it is larger than the sum of its proper divisors (58417135539).

111010102221 is a wasteful number, since it uses less digits than its factorization.

111010102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096333.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111010102221 its reverse (122201010111), we get a palindrome (233211112332).

The spelling of 111010102221 in words is "one hundred eleven billion, ten million, one hundred two thousand, two hundred twenty-one".