121111220202 has 32 divisors (see below), whose sum is σ = 276843235200. Its totient is φ = 34601007168.

The previous prime is 121111220183. The next prime is 121111220281. The reversal of 121111220202 is 202022111121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647424 + ... + 813252.

It is an arithmetic number, because the mean of its divisors is an integer number (8651351100).

Almost surely, 2^121111220202 is an apocalyptic number.

121111220202 is an abundant number, since it is smaller than the sum of its proper divisors (155732014998).

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

121111220202 is a wasteful number, since it uses less digits than its factorization.

121111220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183230.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121111220202 its reverse (202022111121), we get a palindrome (323133331323).

The spelling of 121111220202 in words is "one hundred twenty-one billion, one hundred eleven million, two hundred twenty thousand, two hundred two".