222021121011210 has 48 divisors (see below), whose sum is σ = 577659438379296. Its totient is φ = 59164142654304.

The previous prime is 222021121011133. The next prime is 222021121011223. The reversal of 222021121011210 is 12110121120222.

222021121011210 is a `hidden beast` number, since 2 + 2 + 20 + 211 + 210 + 11 + 210 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 864237844 + ... + 864494703.

It is an arithmetic number, because the mean of its divisors is an integer number (12034571632902).

Almost surely, 2^{222021121011210} is an apocalyptic number.

222021121011210 is an abundant number, since it is smaller than the sum of its proper divisors (355638317368086).

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

222021121011210 is a wasteful number, since it uses less digits than its factorization.

222021121011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728733987 (or 1728733984 counting only the distinct ones).

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

Adding to 222021121011210 its reverse (12110121120222), we get a palindrome (234131242131432).

The spelling of 222021121011210 in words is "two hundred twenty-two trillion, twenty-one billion, one hundred twenty-one million, eleven thousand, two hundred ten".