20212233102 has 48 divisors (see below), whose sum is σ = 45498765312. Its totient is φ = 6725005560.

The previous prime is 20212233091. The next prime is 20212233121. The reversal of 20212233102 is 20133221202.

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

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 227827 + ... + 303857.

It is an arithmetic number, because the mean of its divisors is an integer number (947890944).

Almost surely, 2^20212233102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212233102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22749382656).

20212233102 is an abundant number, since it is smaller than the sum of its proper divisors (25286532210).

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

20212233102 is an equidigital number, since it uses as much as digits as its factorization.

20212233102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76595 (or 76583 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20212233102 its reverse (20133221202), we get a palindrome (40345454304).

The spelling of 20212233102 in words is "twenty billion, two hundred twelve million, two hundred thirty-three thousand, one hundred two".