20202012111 has 8 divisors (see below), whose sum is σ = 26950420224. Its totient is φ = 13460806040.

The previous prime is 20202012109. The next prime is 20202012113. The reversal of 20202012111 is 11121020202.

It is an interprime number because it is at equal distance from previous prime (20202012109) and next prime (20202012113).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20202012111 - 2¹ = 20202012109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202012113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1793961 + ... + 1805186.

It is an arithmetic number, because the mean of its divisors is an integer number (3368802528).

Almost surely, 2^20202012111 is an apocalyptic number.

20202012111 is a deficient number, since it is larger than the sum of its proper divisors (6748408113).

20202012111 is a wasteful number, since it uses less digits than its factorization.

20202012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601021.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20202012111 its reverse (11121020202), we get a palindrome (31323032313).

The spelling of 20202012111 in words is "twenty billion, two hundred two million, twelve thousand, one hundred eleven".