20011222311030 has 64 divisors (see below), whose sum is σ = 53368298081280. Its totient is φ = 5335822091232.

The previous prime is 20011222311019. The next prime is 20011222311037. The reversal of 20011222311030 is 3011322211002.

20011222311030 is a `hidden beast` number, since 200 + 1 + 122 + 2 + 311 + 0 + 30 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20011222310994 and 20011222311012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011222311037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 629824 + ... + 6357603.

It is an arithmetic number, because the mean of its divisors is an integer number (833879657520).

Almost surely, 2^{20011222311030} is an apocalyptic number.

20011222311030 is an abundant number, since it is smaller than the sum of its proper divisors (33357075770250).

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

20011222311030 is a wasteful number, since it uses less digits than its factorization.

20011222311030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6998050 (or 6998044 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20011222311030 its reverse (3011322211002), we get a palindrome (23022544522032).

The spelling of 20011222311030 in words is "twenty trillion, eleven billion, two hundred twenty-two million, three hundred eleven thousand, thirty".