121111010200122 has 16 divisors (see below), whose sum is σ = 242229938330880. Its totient is φ = 40369017078272.

The previous prime is 121111010200121. The next prime is 121111010200223. The reversal of 121111010200122 is 221002010111121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121111010200121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329714922 + ... + 330082037.

It is an arithmetic number, because the mean of its divisors is an integer number (15139371145680).

Almost surely, 2^{121111010200122} is an apocalyptic number.

121111010200122 is an abundant number, since it is smaller than the sum of its proper divisors (121118928130758).

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

121111010200122 is a wasteful number, since it uses less digits than its factorization.

121111010200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659827557.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121111010200122 its reverse (221002010111121), we get a palindrome (342113020311243).

The spelling of 121111010200122 in words is "one hundred twenty-one trillion, one hundred eleven billion, ten million, two hundred thousand, one hundred twenty-two".