1401212212231 has 16 divisors (see below), whose sum is σ = 1611225133056. Its totient is φ = 1208418827616.

The previous prime is 1401212212157. The next prime is 1401212212307. The reversal of 1401212212231 is 1322122121041.

It is not a de Polignac number, because 1401212212231 - 2¹¹ = 1401212210183 is a prime.

It is a super-2 number, since 2×1401212212231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401212212031) 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, 54479335 + ... + 54505048.

It is an arithmetic number, because the mean of its divisors is an integer number (100701570816).

Almost surely, 2^{1401212212231} is an apocalyptic number.

1401212212231 is a deficient number, since it is larger than the sum of its proper divisors (210012920825).

1401212212231 is a wasteful number, since it uses less digits than its factorization.

1401212212231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108984462.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1401212212231 its reverse (1322122121041), we get a palindrome (2723334333272).

The spelling of 1401212212231 in words is "one trillion, four hundred one billion, two hundred twelve million, two hundred twelve thousand, two hundred thirty-one".