1121214213 has 24 divisors (see below), whose sum is σ = 1852812416. Its totient is φ = 640029600.

The previous prime is 1121214203. The next prime is 1121214223. The reversal of 1121214213 is 3124121211.

It is an interprime number because it is at equal distance from previous prime (1121214203) and next prime (1121214223).

It is not a de Polignac number, because 1121214213 - 2¹² = 1121210117 is a prime.

It is a super-2 number, since 2×1121214213² = 2514242622866418738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121214203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55608 + ... + 73038.

Almost surely, 2^1121214213 is an apocalyptic number.

It is an amenable number.

1121214213 is a deficient number, since it is larger than the sum of its proper divisors (731598203).

1121214213 is a wasteful number, since it uses less digits than its factorization.

1121214213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18465 (or 18462 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1121214213 is about 33484.5369237802. The cubic root of 1121214213 is about 1038.8739701816.

Adding to 1121214213 its reverse (3124121211), we get a palindrome (4245335424).

It can be divided in two parts, 11212 and 14213, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 1121214213 in words is "one billion, one hundred twenty-one million, two hundred fourteen thousand, two hundred thirteen".