20211002012212 has 48 divisors (see below), whose sum is σ = 39177184878720. Its totient is φ = 9046061763200.

The previous prime is 20211002012197. The next prime is 20211002012213. The reversal of 20211002012212 is 21221020011202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211002012213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1568887 + ... + 6548542.

It is an arithmetic number, because the mean of its divisors is an integer number (816191351640).

Almost surely, 2^{20211002012212} is an apocalyptic number.

20211002012212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20211002012212 is a deficient number, since it is larger than the sum of its proper divisors (18966182866508).

20211002012212 is a wasteful number, since it uses less digits than its factorization.

20211002012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8118312 (or 8118310 counting only the distinct ones).

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

Adding to 20211002012212 its reverse (21221020011202), we get a palindrome (41432022023414).

The spelling of 20211002012212 in words is "twenty trillion, two hundred eleven billion, two million, twelve thousand, two hundred twelve".