1220102232545 has 8 divisors (see below), whose sum is σ = 1673283061824. Its totient is φ = 836641530864.

The previous prime is 1220102232539. The next prime is 1220102232589. The reversal of 1220102232545 is 5452322010221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220102232545 - 2²⁸ = 1219833797089 is a prime.

It is a super-2 number, since 2×1220102232545² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17430031859 + ... + 17430031928.

It is an arithmetic number, because the mean of its divisors is an integer number (209160382728).

Almost surely, 2^{1220102232545} is an apocalyptic number.

It is an amenable number.

1220102232545 is a deficient number, since it is larger than the sum of its proper divisors (453180829279).

1220102232545 is an equidigital number, since it uses as much as digits as its factorization.

1220102232545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34860063799.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 1220102232545 its reverse (5452322010221), we get a palindrome (6672424242766).

The spelling of 1220102232545 in words is "one trillion, two hundred twenty billion, one hundred two million, two hundred thirty-two thousand, five hundred forty-five".