1322220123 has 48 divisors (see below), whose sum is σ = 2252402880. Its totient is φ = 731628288.

The previous prime is 1322220103. The next prime is 1322220131. The reversal of 1322220123 is 3210222231.

1322220123 is a `hidden beast` number, since 1 + 322 + 220 + 123 = 666.

It is not a de Polignac number, because 1322220123 - 2¹³ = 1322211931 is a prime.

It is a super-2 number, since 2×1322220123² = 3496532107332270258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1322220096 and 1322220105.

It is not an unprimeable number, because it can be changed into a prime (1322220103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 532561 + ... + 535037.

It is an arithmetic number, because the mean of its divisors is an integer number (46925060).

Almost surely, 2^1322220123 is an apocalyptic number.

1322220123 is a deficient number, since it is larger than the sum of its proper divisors (930182757).

1322220123 is a wasteful number, since it uses less digits than its factorization.

1322220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756 (or 2753 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1322220123 is about 36362.3448501331. The cubic root of 1322220123 is about 1097.5759632492.

Adding to 1322220123 its reverse (3210222231), we get a palindrome (4532442354).

It can be divided in two parts, 1322 and 220123, that added together give a triangular number (221445 = T₆₆₅).

The spelling of 1322220123 in words is "one billion, three hundred twenty-two million, two hundred twenty thousand, one hundred twenty-three".