20011122011222 has 8 divisors (see below), whose sum is σ = 30018385950696. Its totient is φ = 10004993360992.

The previous prime is 20011122011147. The next prime is 20011122011239. The reversal of 20011122011222 is 22211022111002.

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 20011122011222.

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, 283778243 + ... + 283848750.

It is an arithmetic number, because the mean of its divisors is an integer number (3752298243837).

Almost surely, 2^{20011122011222} is an apocalyptic number.

20011122011222 is a deficient number, since it is larger than the sum of its proper divisors (10007263939474).

20011122011222 is a wasteful number, since it uses less digits than its factorization.

20011122011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567644622.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20011122011222 its reverse (22211022111002), we get a palindrome (42222144122224).

The spelling of 20011122011222 in words is "twenty trillion, eleven billion, one hundred twenty-two million, eleven thousand, two hundred twenty-two".