21222200102 has 8 divisors (see below), whose sum is σ = 31840890312. Its totient is φ = 10608570000.

The previous prime is 21222200101. The next prime is 21222200123. The reversal of 21222200102 is 20100222212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222200101) 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, 1254524 + ... + 1271327.

It is an arithmetic number, because the mean of its divisors is an integer number (3980111289).

Almost surely, 2^21222200102 is an apocalyptic number.

21222200102 is a deficient number, since it is larger than the sum of its proper divisors (10618690210).

21222200102 is a wasteful number, since it uses less digits than its factorization.

21222200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530054.

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

Adding to 21222200102 its reverse (20100222212), we get a palindrome (41322422314).

The spelling of 21222200102 in words is "twenty-one billion, two hundred twenty-two million, two hundred thousand, one hundred two".