1213555503322 has 32 divisors (see below), whose sum is σ = 1835716267008. Its totient is φ = 601675554816.

The previous prime is 1213555503287. The next prime is 1213555503337. The reversal of 1213555503322 is 2233055553121.

It is a super-2 number, since 2×1213555503322² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166305178 + ... + 166312474.

It is an arithmetic number, because the mean of its divisors is an integer number (57366133344).

Almost surely, 2^{1213555503322} is an apocalyptic number.

1213555503322 is a deficient number, since it is larger than the sum of its proper divisors (622160763686).

1213555503322 is a wasteful number, since it uses less digits than its factorization.

1213555503322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8950.

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 1213555503322 in words is "one trillion, two hundred thirteen billion, five hundred fifty-five million, five hundred three thousand, three hundred twenty-two".