121210022021223 has 16 divisors (see below), whose sum is σ = 161710067541600. Its totient is φ = 80758330181760.

The previous prime is 121210022021219. The next prime is 121210022021251. The reversal of 121210022021223 is 322120220012121.

It is not a de Polignac number, because 121210022021223 - 2² = 121210022021219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121210022021223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210022011223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656271333 + ... + 656456001.

It is an arithmetic number, because the mean of its divisors is an integer number (10106879221350).

Almost surely, 2^{121210022021223} is an apocalyptic number.

121210022021223 is a deficient number, since it is larger than the sum of its proper divisors (40500045520377).

121210022021223 is a wasteful number, since it uses less digits than its factorization.

121210022021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314402.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121210022021223 its reverse (322120220012121), we get a palindrome (443330242033344).

The spelling of 121210022021223 in words is "one hundred twenty-one trillion, two hundred ten billion, twenty-two million, twenty-one thousand, two hundred twenty-three".