1020022111191 has 16 divisors (see below), whose sum is σ = 1367166735200. Its totient is φ = 676455373440.

The previous prime is 1020022111177. The next prime is 1020022111193. The reversal of 1020022111191 is 1911112200201.

It is not a de Polignac number, because 1020022111191 - 2⁵ = 1020022111159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020022111193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716260 + ... + 1597833.

It is an arithmetic number, because the mean of its divisors is an integer number (85447920950).

Almost surely, 2^{1020022111191} is an apocalyptic number.

1020022111191 is a deficient number, since it is larger than the sum of its proper divisors (347144624009).

1020022111191 is a wasteful number, since it uses less digits than its factorization.

1020022111191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314866.

The product of its (nonzero) digits is 72, while the sum is 21.

Adding to 1020022111191 its reverse (1911112200201), we get a palindrome (2931134311392).

The spelling of 1020022111191 in words is "one trillion, twenty billion, twenty-two million, one hundred eleven thousand, one hundred ninety-one".