1222157076 has 24 divisors (see below), whose sum is σ = 3259085760. Its totient is φ = 349187712.

The previous prime is 1222157039. The next prime is 1222157077. The reversal of 1222157076 is 6707512221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222157077) 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, 7274661 + ... + 7274828.

It is an arithmetic number, because the mean of its divisors is an integer number (135795240).

Almost surely, 2^1222157076 is an apocalyptic number.

It is an amenable number.

1222157076 is an abundant number, since it is smaller than the sum of its proper divisors (2036928684).

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

1222157076 is a wasteful number, since it uses less digits than its factorization.

1222157076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14549503 (or 14549501 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 1222157076 is about 34959.3632093035. The cubic root of 1222157076 is about 1069.1591134116.

Adding to 1222157076 its reverse (6707512221), we get a palindrome (7929669297).

It can be divided in two parts, 12221 and 57076, that multiplied together give a palindrome (697525796).

The spelling of 1222157076 in words is "one billion, two hundred twenty-two million, one hundred fifty-seven thousand, seventy-six".