21000210020222 has 8 divisors (see below), whose sum is σ = 31518491789736. Its totient is φ = 10494046090312.

The previous prime is 21000210020221. The next prime is 21000210020233. The reversal of 21000210020222 is 22202001200012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21000210020197 and 21000210020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000210020221) 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, 3029455568 + ... + 3029462499.

It is an arithmetic number, because the mean of its divisors is an integer number (3939811473717).

Almost surely, 2^{21000210020222} is an apocalyptic number.

21000210020222 is a deficient number, since it is larger than the sum of its proper divisors (10518281769514).

21000210020222 is a wasteful number, since it uses less digits than its factorization.

21000210020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058919802.

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

Adding to 21000210020222 its reverse (22202001200012), we get a palindrome (43202211220234).

The spelling of 21000210020222 in words is "twenty-one trillion, two hundred ten million, twenty thousand, two hundred twenty-two".