1221114342 has 32 divisors (see below), whose sum is σ = 2792155392. Its totient is φ = 348760224.

The previous prime is 1221114331. The next prime is 1221114353. The reversal of 1221114342 is 2434111221.

It is an interprime number because it is at equal distance from previous prime (1221114331) and next prime (1221114353).

It is a super-2 number, since 2×1221114342² = 2982240472476185928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211648 + ... + 217340.

It is an arithmetic number, because the mean of its divisors is an integer number (87254856).

Almost surely, 2^1221114342 is an apocalyptic number.

1221114342 is an abundant number, since it is smaller than the sum of its proper divisors (1571041050).

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

1221114342 is a wasteful number, since it uses less digits than its factorization.

1221114342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10812.

The product of its digits is 384, while the sum is 21.

The square root of 1221114342 is about 34944.4465115703. The cubic root of 1221114342 is about 1068.8549610810.

Adding to 1221114342 its reverse (2434111221), we get a palindrome (3655225563).

The spelling of 1221114342 in words is "one billion, two hundred twenty-one million, one hundred fourteen thousand, three hundred forty-two".