133212222231 has 32 divisors (see below), whose sum is σ = 198530196480. Its totient is φ = 78749260800.

The previous prime is 133212222133. The next prime is 133212222233. The reversal of 133212222231 is 132222212331.

It is not a de Polignac number, because 133212222231 - 2⁷ = 133212222103 is a prime.

It is a super-2 number, since 2×133212222231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133212222233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10708191 + ... + 10720623.

It is an arithmetic number, because the mean of its divisors is an integer number (6204068640).

Almost surely, 2^133212222231 is an apocalyptic number.

133212222231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133212222231 is a deficient number, since it is larger than the sum of its proper divisors (65317974249).

133212222231 is a wasteful number, since it uses less digits than its factorization.

133212222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20407.

The product of its digits is 1728, while the sum is 24.

Adding to 133212222231 its reverse (132222212331), we get a palindrome (265434434562).

The spelling of 133212222231 in words is "one hundred thirty-three billion, two hundred twelve million, two hundred twenty-two thousand, two hundred thirty-one".