20011021212022 has 16 divisors (see below), whose sum is σ = 31687405064640. Its totient is φ = 9451588049928.

The previous prime is 20011021212011. The next prime is 20011021212043. The reversal of 20011021212022 is 22021212011002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20011021211987 and 20011021212005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758784828 + ... + 758811199.

It is an arithmetic number, because the mean of its divisors is an integer number (1980462816540).

Almost surely, 2^{20011021212022} is an apocalyptic number.

20011021212022 is a deficient number, since it is larger than the sum of its proper divisors (11676383852618).

20011021212022 is a wasteful number, since it uses less digits than its factorization.

20011021212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517596395.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20011021212022 its reverse (22021212011002), we get a palindrome (42032233223024).

The spelling of 20011021212022 in words is "twenty trillion, eleven billion, twenty-one million, two hundred twelve thousand, twenty-two".