20111202210030 has 64 divisors (see below), whose sum is σ = 48315993550848. Its totient is φ = 5357533570560.

The previous prime is 20111202210007. The next prime is 20111202210037. The reversal of 20111202210030 is 3001220211102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 20111202209991 and 20111202210009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111202210037) 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, 118100007 + ... + 118270173.

It is an arithmetic number, because the mean of its divisors is an integer number (754937399232).

Almost surely, 2^{20111202210030} is an apocalyptic number.

20111202210030 is an abundant number, since it is smaller than the sum of its proper divisors (28204791340818).

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

20111202210030 is a wasteful number, since it uses less digits than its factorization.

20111202210030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174161.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20111202210030 its reverse (3001220211102), we get a palindrome (23112422421132).

The spelling of 20111202210030 in words is "twenty trillion, one hundred eleven billion, two hundred two million, two hundred ten thousand, thirty".