11220213402 has 24 divisors (see below), whose sum is σ = 24603362784. Its totient is φ = 3695009544.

The previous prime is 11220213359. The next prime is 11220213413. The reversal of 11220213402 is 20431202211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3753598 + ... + 3756585.

It is an arithmetic number, because the mean of its divisors is an integer number (1025140116).

Almost surely, 2^11220213402 is an apocalyptic number.

11220213402 is an abundant number, since it is smaller than the sum of its proper divisors (13383149382).

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

11220213402 is a wasteful number, since it uses less digits than its factorization.

11220213402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7510274 (or 7510271 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11220213402 its reverse (20431202211), we get a palindrome (31651415613).

The spelling of 11220213402 in words is "eleven billion, two hundred twenty million, two hundred thirteen thousand, four hundred two".