222120212222210 has 16 divisors (see below), whose sum is σ = 399816990799992. Its totient is φ = 88847949600000.

The previous prime is 222120212222191. The next prime is 222120212222221. The reversal of 222120212222210 is 12222212021222.

It can be written as a sum of positive squares in 4 ways, for example, as 164212358524369 + 57907853697841 = 12814537^2 + 7609721^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9876101 + ... + 23276120.

Almost surely, 2^{222120212222210} is an apocalyptic number.

222120212222210 is a deficient number, since it is larger than the sum of its proper divisors (177696778577782).

222120212222210 is a wasteful number, since it uses less digits than its factorization.

222120212222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33822229.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 222120212222210 its reverse (12222212021222), we get a palindrome (234342424243432).

The spelling of 222120212222210 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred twelve million, two hundred twenty-two thousand, two hundred ten".