1201642822 has 16 divisors (see below), whose sum is σ = 1819319040. Its totient is φ = 595227528.

The previous prime is 1201642787. The next prime is 1201642823. The reversal of 1201642822 is 2282461021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201642823) 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, 96679 + ... + 108397.

It is an arithmetic number, because the mean of its divisors is an integer number (113707440).

Almost surely, 2^1201642822 is an apocalyptic number.

1201642822 is a deficient number, since it is larger than the sum of its proper divisors (617676218).

1201642822 is a wasteful number, since it uses less digits than its factorization.

1201642822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12195.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 1201642822 is about 34664.7201344537. The cubic root of 1201642822 is about 1063.1432810778.

The spelling of 1201642822 in words is "one billion, two hundred one million, six hundred forty-two thousand, eight hundred twenty-two".