122021445345 has 16 divisors (see below), whose sum is σ = 195260665920. Its totient is φ = 65069319744.

The previous prime is 122021445317. The next prime is 122021445373. The reversal of 122021445345 is 543544120221.

It is an interprime number because it is at equal distance from previous prime (122021445317) and next prime (122021445373).

It is not a de Polignac number, because 122021445345 - 2⁸ = 122021445089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433414 + ... + 657183.

It is an arithmetic number, because the mean of its divisors is an integer number (12203791620).

Almost surely, 2^122021445345 is an apocalyptic number.

122021445345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122021445345 is a deficient number, since it is larger than the sum of its proper divisors (73239220575).

122021445345 is a wasteful number, since it uses less digits than its factorization.

122021445345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098064.

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

Adding to 122021445345 its reverse (543544120221), we get a palindrome (665565565566).

The spelling of 122021445345 in words is "one hundred twenty-two billion, twenty-one million, four hundred forty-five thousand, three hundred forty-five".