22001000220212 has 12 divisors (see below), whose sum is σ = 41463423492036. Its totient is φ = 10154307793920.

The previous prime is 22001000220211. The next prime is 22001000220239. The reversal of 22001000220212 is 21202200010022.

It can be written as a sum of positive squares in 2 ways, for example, as 13087348110736 + 8913652109476 = 3617644^2 + 2985574^2 .

It is a super-3 number, since 3×22001000220212³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001000220211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211548078989 + ... + 211548079092.

It is an arithmetic number, because the mean of its divisors is an integer number (3455285291003).

Almost surely, 2^{22001000220212} is an apocalyptic number.

It is an amenable number.

22001000220212 is a deficient number, since it is larger than the sum of its proper divisors (19462423271824).

22001000220212 is a wasteful number, since it uses less digits than its factorization.

22001000220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423096158098 (or 423096158096 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22001000220212 its reverse (21202200010022), we get a palindrome (43203200230234).

The spelling of 22001000220212 in words is "twenty-two trillion, one billion, two hundred twenty thousand, two hundred twelve".