153221022 has 24 divisors (see below), whose sum is σ = 332248176. Its totient is φ = 51032256.

The previous prime is 153220993. The next prime is 153221023. The reversal of 153221022 is 220122351.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 153220986 and 153221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153221023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26278 + ... + 31574.

It is an arithmetic number, because the mean of its divisors is an integer number (13843674).

Almost surely, 2^153221022 is an apocalyptic number.

153221022 is an abundant number, since it is smaller than the sum of its proper divisors (179027154).

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

153221022 is a wasteful number, since it uses less digits than its factorization.

153221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6912 (or 6909 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 153221022 is about 12378.2479374102. The cubic root of 153221022 is about 535.1055453104.

Adding to 153221022 its reverse (220122351), we get a palindrome (373343373).

The spelling of 153221022 in words is "one hundred fifty-three million, two hundred twenty-one thousand, twenty-two".