222121202220010 has 32 divisors (see below), whose sum is σ = 413607892919760. Its totient is φ = 85784139581952.

The previous prime is 222121202219999. The next prime is 222121202220053. The reversal of 222121202220010 is 10022202121222.

It can be written as a sum of positive squares in 8 ways, for example, as 150142454147169 + 71978748072841 = 12253263^2 + 8484029^2 .

It is a super-3 number, since 3×222121202220010³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222121202220010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39980772 + ... + 45196288.

Almost surely, 2^{222121202220010} is an apocalyptic number.

222121202220010 is a deficient number, since it is larger than the sum of its proper divisors (191486690699750).

222121202220010 is a wasteful number, since it uses less digits than its factorization.

222121202220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5362410.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222121202220010 its reverse (10022202121222), we get a palindrome (232143404341232).

The spelling of 222121202220010 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty thousand, ten".