1222773402 has 8 divisors (see below), whose sum is σ = 2445546816. Its totient is φ = 407591132.

The previous prime is 1222773379. The next prime is 1222773437. The reversal of 1222773402 is 2043772221.

It is a sphenic number, since it is the product of 3 distinct primes.

1222773402 is an admirable number.

It is a super-3 number, since 3×1222773402³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222773402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101897778 + ... + 101897789.

It is an arithmetic number, because the mean of its divisors is an integer number (305693352).

Almost surely, 2^1222773402 is an apocalyptic number.

1222773402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1222773402 is a wasteful number, since it uses less digits than its factorization.

1222773402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203795572.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 1222773402 is about 34968.1769899433. The cubic root of 1222773402 is about 1069.3388065775.

The spelling of 1222773402 in words is "one billion, two hundred twenty-two million, seven hundred seventy-three thousand, four hundred two".