1223447540042 has 16 divisors (see below), whose sum is σ = 2258672381952. Its totient is φ = 484001224560.

The previous prime is 1223447540041. The next prime is 1223447540101. The reversal of 1223447540042 is 2400457443221.

It is a junction number, because it is equal to n+sod(n) for n = 1223447539978 and 1223447540005.

It is not an unprimeable number, because it can be changed into a prime (1223447540041) 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, 3361119434 + ... + 3361119797.

It is an arithmetic number, because the mean of its divisors is an integer number (141167023872).

Almost surely, 2^{1223447540042} is an apocalyptic number.

1223447540042 is a deficient number, since it is larger than the sum of its proper divisors (1035224841910).

1223447540042 is a wasteful number, since it uses less digits than its factorization.

1223447540042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6722239253.

The product of its (nonzero) digits is 215040, while the sum is 38.

The spelling of 1223447540042 in words is "one trillion, two hundred twenty-three billion, four hundred forty-seven million, five hundred forty thousand, forty-two".