122100021123 has 8 divisors (see below), whose sum is σ = 162801774336. Its totient is φ = 81399141000.

The previous prime is 122100021107. The next prime is 122100021139. The reversal of 122100021123 is 321120001221.

It is an interprime number because it is at equal distance from previous prime (122100021107) and next prime (122100021139).

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

It is not a de Polignac number, because 122100021123 - 2⁴ = 122100021107 is a prime.

It is a super-2 number, since 2×122100021123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122100021143) 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, 254058 + ... + 555648.

It is an arithmetic number, because the mean of its divisors is an integer number (20350221792).

Almost surely, 2^122100021123 is an apocalyptic number.

122100021123 is a deficient number, since it is larger than the sum of its proper divisors (40701753213).

122100021123 is a wasteful number, since it uses less digits than its factorization.

122100021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436545.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 122100021123 its reverse (321120001221), we get a palindrome (443220022344).

The spelling of 122100021123 in words is "one hundred twenty-two billion, one hundred million, twenty-one thousand, one hundred twenty-three".