222021121211010 has 48 divisors (see below), whose sum is σ = 629732634710400. Its totient is φ = 53823302111520.

The previous prime is 222021121211009. The next prime is 222021121211027. The reversal of 222021121211010 is 10112121120222.

222021121211010 is a `hidden beast` number, since 2 + 220 + 211 + 21 + 211 + 0 + 1 + 0 = 666.

It is a super-3 number, since 3×222021121211010³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112131878410 + ... + 112131880389.

It is an arithmetic number, because the mean of its divisors is an integer number (13119429889800).

Almost surely, 2^{222021121211010} is an apocalyptic number.

222021121211010 is an abundant number, since it is smaller than the sum of its proper divisors (407711513499390).

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

222021121211010 is a wasteful number, since it uses less digits than its factorization.

222021121211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224263758823 (or 224263758820 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222021121211010 its reverse (10112121120222), we get a palindrome (232133242331232).

The spelling of 222021121211010 in words is "two hundred twenty-two trillion, twenty-one billion, one hundred twenty-one million, two hundred eleven thousand, ten".