385355222031 has 16 divisors (see below), whose sum is σ = 553345551360. Its totient is φ = 237135256800.

The previous prime is 385355222027. The next prime is 385355222039. The reversal of 385355222031 is 130222553583.

It is not a de Polignac number, because 385355222031 - 2² = 385355222027 is a prime.

It is a super-2 number, since 2×385355222031² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385355222039) 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, 1615306 + ... + 1838456.

It is an arithmetic number, because the mean of its divisors is an integer number (34584096960).

Almost surely, 2^385355222031 is an apocalyptic number.

385355222031 is a deficient number, since it is larger than the sum of its proper divisors (167990329329).

385355222031 is a wasteful number, since it uses less digits than its factorization.

385355222031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267446.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 385355222031 in words is "three hundred eighty-five billion, three hundred fifty-five million, two hundred twenty-two thousand, thirty-one".