1213015422 has 64 divisors (see below), whose sum is σ = 2587152960. Its totient is φ = 378470400.

The previous prime is 1213015421. The next prime is 1213015457. The reversal of 1213015422 is 2245103121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213015421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1376422 + ... + 1377302.

It is an arithmetic number, because the mean of its divisors is an integer number (40424265).

Almost surely, 2^1213015422 is an apocalyptic number.

1213015422 is an abundant number, since it is smaller than the sum of its proper divisors (1374137538).

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

1213015422 is a wasteful number, since it uses less digits than its factorization.

1213015422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1213015422 is about 34828.3709352017. The cubic root of 1213015422 is about 1066.4866926607.

Adding to 1213015422 its reverse (2245103121), we get a palindrome (3458118543).

The spelling of 1213015422 in words is "one billion, two hundred thirteen million, fifteen thousand, four hundred twenty-two".