1222493140 has 48 divisors (see below), whose sum is σ = 2804417280. Its totient is φ = 443940480.

The previous prime is 1222493119. The next prime is 1222493143. The reversal of 1222493140 is 413942221.

It is a junction number, because it is equal to n+sod(n) for n = 1222493099 and 1222493108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222493143) 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, 179029 + ... + 185731.

It is an arithmetic number, because the mean of its divisors is an integer number (58425360).

Almost surely, 2^1222493140 is an apocalyptic number.

1222493140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222493140 is an abundant number, since it is smaller than the sum of its proper divisors (1581924140).

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

1222493140 is a wasteful number, since it uses less digits than its factorization.

1222493140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7552 (or 7550 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1222493140 is about 34964.1693738032. The cubic root of 1222493140 is about 1069.2571021690.

The spelling of 1222493140 in words is "one billion, two hundred twenty-two million, four hundred ninety-three thousand, one hundred forty".