2211323145402 has 16 divisors (see below), whose sum is σ = 5054452903872. Its totient is φ = 631806612960.

The previous prime is 2211323145389. The next prime is 2211323145517. The reversal of 2211323145402 is 2045413231122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211323145402.

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 7 ways as a sum of consecutive naturals, for example, 26325275499 + ... + 26325275582.

It is an arithmetic number, because the mean of its divisors is an integer number (315903306492).

Almost surely, 2^{2211323145402} is an apocalyptic number.

2211323145402 is an abundant number, since it is smaller than the sum of its proper divisors (2843129758470).

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

2211323145402 is a wasteful number, since it uses less digits than its factorization.

2211323145402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52650551093.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 2211323145402 its reverse (2045413231122), we get a palindrome (4256736376524).

The spelling of 2211323145402 in words is "two trillion, two hundred eleven billion, three hundred twenty-three million, one hundred forty-five thousand, four hundred two".