31233000020222 has 96 divisors (see below), whose sum is σ = 65234130935904. Its totient is φ = 11020710355200.

The previous prime is 31233000020221. The next prime is 31233000020227. The reversal of 31233000020222 is 22202000033213.

It is a junction number, because it is equal to n+sod(n) for n = 31233000020194 and 31233000020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233000020221) 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, 20282729 + ... + 21768212.

It is an arithmetic number, because the mean of its divisors is an integer number (679522197249).

Almost surely, 2^{31233000020222} is an apocalyptic number.

31233000020222 is an abundant number, since it is smaller than the sum of its proper divisors (34001130915682).

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

31233000020222 is a wasteful number, since it uses less digits than its factorization.

31233000020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42051034 (or 42051027 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31233000020222 its reverse (22202000033213), we get a palindrome (53435000053435).

The spelling of 31233000020222 in words is "thirty-one trillion, two hundred thirty-three billion, twenty thousand, two hundred twenty-two".