1220435210445 has 32 divisors (see below), whose sum is σ = 2132449732224. Its totient is φ = 591105177600.

The previous prime is 1220435210383. The next prime is 1220435210447. The reversal of 1220435210445 is 5440125340221.

It is not a de Polignac number, because 1220435210445 - 2⁷ = 1220435210317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220435210447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3723436 + ... + 4037925.

It is an arithmetic number, because the mean of its divisors is an integer number (66639054132).

Almost surely, 2^{1220435210445} is an apocalyptic number.

1220435210445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1220435210445 is a deficient number, since it is larger than the sum of its proper divisors (912014521779).

1220435210445 is a wasteful number, since it uses less digits than its factorization.

1220435210445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7762333.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 1220435210445 in words is "one trillion, two hundred twenty billion, four hundred thirty-five million, two hundred ten thousand, four hundred forty-five".