123020021221222 has 16 divisors (see below), whose sum is σ = 188480624748480. Its totient is φ = 60193485499968.

The previous prime is 123020021221219. The next prime is 123020021221271. The reversal of 123020021221222 is 222122120020321.

It is a happy number.

It is a super-2 number, since 2×123020021221222² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123020021221193 and 123020021221202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84069447 + ... + 85520242.

It is an arithmetic number, because the mean of its divisors is an integer number (11780039046780).

Almost surely, 2^{123020021221222} is an apocalyptic number.

123020021221222 is a deficient number, since it is larger than the sum of its proper divisors (65460603527258).

123020021221222 is a wasteful number, since it uses less digits than its factorization.

123020021221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169597455.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 123020021221222 its reverse (222122120020321), we get a palindrome (345142141241543).

The spelling of 123020021221222 in words is "one hundred twenty-three trillion, twenty billion, twenty-one million, two hundred twenty-one thousand, two hundred twenty-two".