222121002102 has 32 divisors (see below), whose sum is σ = 487954609920. Its totient is φ = 67093757280.

The previous prime is 222121002101. The next prime is 222121002109. The reversal of 222121002102 is 201200121222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121002101) 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, 42354549 + ... + 42359792.

It is an arithmetic number, because the mean of its divisors is an integer number (15248581560).

Almost surely, 2^222121002102 is an apocalyptic number.

222121002102 is an abundant number, since it is smaller than the sum of its proper divisors (265833607818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222121002102 is a wasteful number, since it uses less digits than its factorization.

222121002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84714388.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222121002102 its reverse (201200121222), we get a palindrome (423321123324).

The spelling of 222121002102 in words is "two hundred twenty-two billion, one hundred twenty-one million, two thousand, one hundred two".