122077215221 has 8 divisors (see below), whose sum is σ = 131470725120. Its totient is φ = 112684127472.

The previous prime is 122077215109. The next prime is 122077215269. The reversal of 122077215221 is 122512770221.

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 122077215221 - 2²² = 122073020917 is a prime.

It is a super-2 number, since 2×122077215221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122077217221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755000 + ... + 902318.

It is an arithmetic number, because the mean of its divisors is an integer number (16433840640).

Almost surely, 2^122077215221 is an apocalyptic number.

It is an amenable number.

122077215221 is a deficient number, since it is larger than the sum of its proper divisors (9393509899).

122077215221 is a wasteful number, since it uses less digits than its factorization.

122077215221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211075.

The product of its (nonzero) digits is 7840, while the sum is 32.

Adding to 122077215221 its reverse (122512770221), we get a palindrome (244589985442).

The spelling of 122077215221 in words is "one hundred twenty-two billion, seventy-seven million, two hundred fifteen thousand, two hundred twenty-one".