2126212140156 has 36 divisors (see below), whose sum is σ = 5372145471672. Its totient is φ = 654219119424.

The previous prime is 2126212140119. The next prime is 2126212140181. The reversal of 2126212140156 is 6510412126212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 524212011 + ... + 524216066.

It is an arithmetic number, because the mean of its divisors is an integer number (149226263102).

Almost surely, 2^{2126212140156} is an apocalyptic number.

2126212140156 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2126212140156 is an abundant number, since it is smaller than the sum of its proper divisors (3245933331516).

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

2126212140156 is a wasteful number, since it uses less digits than its factorization.

2126212140156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048428110 (or 1048428095 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

Adding to 2126212140156 its reverse (6510412126212), we get a palindrome (8636624266368).

The spelling of 2126212140156 in words is "two trillion, one hundred twenty-six billion, two hundred twelve million, one hundred forty thousand, one hundred fifty-six".