1200110022 has 24 divisors (see below), whose sum is σ = 2670516576. Its totient is φ = 389224656.

The previous prime is 1200110017. The next prime is 1200110029. The reversal of 1200110022 is 2200110021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1200109986 and 1200110013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200110029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 900318 + ... + 901649.

It is an arithmetic number, because the mean of its divisors is an integer number (111271524).

Almost surely, 2^1200110022 is an apocalyptic number.

1200110022 is an abundant number, since it is smaller than the sum of its proper divisors (1470406554).

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

1200110022 is a wasteful number, since it uses less digits than its factorization.

1200110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802012 (or 1802009 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1200110022 is about 34642.6041457625. The cubic root of 1200110022 is about 1062.6910448071.

Adding to 1200110022 its reverse (2200110021), we get a palindrome (3400220043).

Subtracting 1200110022 from its reverse (2200110021), we obtain a palindrome (999999999).

The spelling of 1200110022 in words is "one billion, two hundred million, one hundred ten thousand, twenty-two".