1229504022 has 80 divisors (see below), whose sum is σ = 3070718640. Its totient is φ = 365409792.

The previous prime is 1229503999. The next prime is 1229504027. The reversal of 1229504022 is 2204059221.

It is a happy number.

It is a super-2 number, since 2×1229504022² = 3023360280228352968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229504027) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40578 + ... + 64074.

It is an arithmetic number, because the mean of its divisors is an integer number (38383983).

Almost surely, 2^1229504022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1229504022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1535359320).

1229504022 is an abundant number, since it is smaller than the sum of its proper divisors (1841214618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1229504022 is a wasteful number, since it uses less digits than its factorization.

1229504022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23547 (or 23538 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1229504022 is about 35064.2841364258. The cubic root of 1229504022 is about 1071.2972364274.

The spelling of 1229504022 in words is "one billion, two hundred twenty-nine million, five hundred four thousand, twenty-two".