122020151405 has 8 divisors (see below), whose sum is σ = 155037368952. Its totient is φ = 91873996288.

The previous prime is 122020151401. The next prime is 122020151413. The reversal of 122020151405 is 504151020221.

It can be written as a sum of positive squares in 4 ways, for example, as 25828989796 + 96191161609 = 160714^2 + 310147^2 .

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 122020151405 - 2² = 122020151401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020151401) 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, 717765512 + ... + 717765681.

It is an arithmetic number, because the mean of its divisors is an integer number (19379671119).

Almost surely, 2^122020151405 is an apocalyptic number.

It is an amenable number.

122020151405 is a deficient number, since it is larger than the sum of its proper divisors (33017217547).

122020151405 is a wasteful number, since it uses less digits than its factorization.

122020151405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435531215.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 122020151405 its reverse (504151020221), we get a palindrome (626171171626).

The spelling of 122020151405 in words is "one hundred twenty-two billion, twenty million, one hundred fifty-one thousand, four hundred five".