121121021110022 has 16 divisors (see below), whose sum is σ = 192312118209600. Its totient is φ = 57052595062440.

The previous prime is 121121021109973. The next prime is 121121021110043. The reversal of 121121021110022 is 220011120121121.

It is a congruent number.

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, 8903332004 + ... + 8903345607.

It is an arithmetic number, because the mean of its divisors is an integer number (12019507388100).

Almost surely, 2^{121121021110022} is an apocalyptic number.

121121021110022 is a deficient number, since it is larger than the sum of its proper divisors (71191097099578).

121121021110022 is a wasteful number, since it uses less digits than its factorization.

121121021110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17806677811.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121121021110022 its reverse (220011120121121), we get a palindrome (341132141231143).

The spelling of 121121021110022 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, twenty-one million, one hundred ten thousand, twenty-two".