1223800522782 has 128 divisors (see below), whose sum is σ = 2689562050560. Its totient is φ = 369690048000.

The previous prime is 1223800522771. The next prime is 1223800522793. The reversal of 1223800522782 is 2872250083221.

It is an interprime number because it is at equal distance from previous prime (1223800522771) and next prime (1223800522793).

It is a super-2 number, since 2×1223800522782² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 260214643 + ... + 260219345.

It is an arithmetic number, because the mean of its divisors is an integer number (21012203520).

Almost surely, 2^{1223800522782} is an apocalyptic number.

1223800522782 is an abundant number, since it is smaller than the sum of its proper divisors (1465761527778).

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

1223800522782 is a wasteful number, since it uses less digits than its factorization.

1223800522782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5598.

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 1223800522782 in words is "one trillion, two hundred twenty-three billion, eight hundred million, five hundred twenty-two thousand, seven hundred eighty-two".