20203021212202 has 16 divisors (see below), whose sum is σ = 30364507780992. Its totient is φ = 10081520931040.

The previous prime is 20203021212161. The next prime is 20203021212203. The reversal of 20203021212202 is 20221212030202.

It is a super-2 number, since 2×20203021212202² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20203021212202.

It is not an unprimeable number, because it can be changed into a prime (20203021212203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17172783 + ... + 18311485.

It is an arithmetic number, because the mean of its divisors is an integer number (1897781736312).

Almost surely, 2^{20203021212202} is an apocalyptic number.

20203021212202 is a deficient number, since it is larger than the sum of its proper divisors (10161486568790).

20203021212202 is a wasteful number, since it uses less digits than its factorization.

20203021212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156253.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20203021212202 its reverse (20221212030202), we get a palindrome (40424233242404).

The spelling of 20203021212202 in words is "twenty trillion, two hundred three billion, twenty-one million, two hundred twelve thousand, two hundred two".