222121210020110 has 16 divisors (see below), whose sum is σ = 399993460049232. Its totient is φ = 88809532449600.

The previous prime is 222121210020109. The next prime is 222121210020131. The reversal of 222121210020110 is 11020012121222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4868920856 + ... + 4868966475.

It is an arithmetic number, because the mean of its divisors is an integer number (24999591253077).

Almost surely, 2^{222121210020110} is an apocalyptic number.

222121210020110 is a deficient number, since it is larger than the sum of its proper divisors (177872250029122).

222121210020110 is a wasteful number, since it uses less digits than its factorization.

222121210020110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9737889619.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222121210020110 its reverse (11020012121222), we get a palindrome (233141222141332).

The spelling of 222121210020110 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two hundred ten million, twenty thousand, one hundred ten".