1223515022345 has 64 divisors (see below), whose sum is σ = 1856382769152. Its totient is φ = 751996224000.

The previous prime is 1223515022341. The next prime is 1223515022381. The reversal of 1223515022345 is 5432205153221.

It is not a de Polignac number, because 1223515022345 - 2² = 1223515022341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223515022341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8621765 + ... + 8762525.

It is an arithmetic number, because the mean of its divisors is an integer number (29005980768).

Almost surely, 2^{1223515022345} is an apocalyptic number.

It is an amenable number.

1223515022345 is a deficient number, since it is larger than the sum of its proper divisors (632867746807).

1223515022345 is a wasteful number, since it uses less digits than its factorization.

1223515022345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141102.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 1223515022345 in words is "one trillion, two hundred twenty-three billion, five hundred fifteen million, twenty-two thousand, three hundred forty-five".