920111222 has 4 divisors (see below), whose sum is σ = 1380166836. Its totient is φ = 460055610.

The previous prime is 920111221. The next prime is 920111239. The reversal of 920111222 is 222111029.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 920111194 and 920111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920111221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230027804 + ... + 230027807.

It is an arithmetic number, because the mean of its divisors is an integer number (345041709).

Almost surely, 2^920111222 is an apocalyptic number.

920111222 is a deficient number, since it is larger than the sum of its proper divisors (460055614).

920111222 is a wasteful number, since it uses less digits than its factorization.

920111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460055613.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 920111222 is about 30333.3351611721. The cubic root of 920111222 is about 972.6280178549.

The spelling of 920111222 in words is "nine hundred twenty million, one hundred eleven thousand, two hundred twenty-two".