21111211022302 has 8 divisors (see below), whose sum is σ = 31667074693200. Its totient is φ = 10555519457904.

The previous prime is 21111211022221. The next prime is 21111211022329. The reversal of 21111211022302 is 20322011211112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21111211022302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42719527 + ... + 43210882.

It is an arithmetic number, because the mean of its divisors is an integer number (3958384336650).

Almost surely, 2^{21111211022302} is an apocalyptic number.

21111211022302 is a deficient number, since it is larger than the sum of its proper divisors (10555863670898).

21111211022302 is a wasteful number, since it uses less digits than its factorization.

21111211022302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86053250.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 21111211022302 its reverse (20322011211112), we get a palindrome (41433222233414).

The spelling of 21111211022302 in words is "twenty-one trillion, one hundred eleven billion, two hundred eleven million, twenty-two thousand, three hundred two".