1122222402 has 36 divisors (see below), whose sum is σ = 2828460726. Its totient is φ = 320634720.

The previous prime is 1122222383. The next prime is 1122222407. The reversal of 1122222402 is 2042222211.

It can be written as a sum of positive squares in only one way, i.e., 900540081 + 221682321 = 30009^2 + 14889^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1122222407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 635299 + ... + 637062.

Almost surely, 2^1122222402 is an apocalyptic number.

1122222402 is an abundant number, since it is smaller than the sum of its proper divisors (1706238324).

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

1122222402 is a wasteful number, since it uses less digits than its factorization.

1122222402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272383 (or 1272373 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1122222402 is about 33499.5880870198. The cubic root of 1122222402 is about 1039.1852599484.

Adding to 1122222402 its reverse (2042222211), we get a palindrome (3164444613).

The spelling of 1122222402 in words is "one billion, one hundred twenty-two million, two hundred twenty-two thousand, four hundred two".