1020111222 has 16 divisors (see below), whose sum is σ = 2197162800. Its totient is φ = 313880352.

The previous prime is 1020111187. The next prime is 1020111263. The reversal of 1020111222 is 2221110201.

It is a junction number, because it is equal to n+sod(n) for n = 1020111198 and 1020111207.

It is a congruent number.

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, 6539097 + ... + 6539252.

It is an arithmetic number, because the mean of its divisors is an integer number (137322675).

Almost surely, 2^1020111222 is an apocalyptic number.

1020111222 is an abundant number, since it is smaller than the sum of its proper divisors (1177051578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020111222 is a wasteful number, since it uses less digits than its factorization.

1020111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13078367.

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

The square root of 1020111222 is about 31939.1800458309. The cubic root of 1020111222 is about 1006.6592960052.

Adding to 1020111222 its reverse (2221110201), we get a palindrome (3241221423).

The spelling of 1020111222 in words is "one billion, twenty million, one hundred eleven thousand, two hundred twenty-two".