152023522221 has 16 divisors (see below), whose sum is σ = 225226120320. Its totient is φ = 101346275520.

The previous prime is 152023522201. The next prime is 152023522223. The reversal of 152023522221 is 122225320251.

It is not a de Polignac number, because 152023522221 - 2²² = 152019327917 is a prime.

It is a super-2 number, since 2×152023522221² (a number of 23 digits) 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 (152023522223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1669141 + ... + 1757861.

It is an arithmetic number, because the mean of its divisors is an integer number (14076632520).

Almost surely, 2^152023522221 is an apocalyptic number.

It is an amenable number.

152023522221 is a deficient number, since it is larger than the sum of its proper divisors (73202598099).

152023522221 is an equidigital number, since it uses as much as digits as its factorization.

152023522221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152193 (or 152187 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 152023522221 its reverse (122225320251), we get a palindrome (274248842472).

The spelling of 152023522221 in words is "one hundred fifty-two billion, twenty-three million, five hundred twenty-two thousand, two hundred twenty-one".