121211122111202 has 8 divisors (see below), whose sum is σ = 181826041230300. Its totient is φ = 60602441701104.

The previous prime is 121211122111181. The next prime is 121211122111301. The reversal of 121211122111202 is 202111221112121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 94688838410761 + 26522283700441 = 9730819^2 + 5149979^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121211122111202² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1559628677 + ... + 1559706392.

Almost surely, 2^{121211122111202} is an apocalyptic number.

121211122111202 is a deficient number, since it is larger than the sum of its proper divisors (60614919119098).

121211122111202 is a wasteful number, since it uses less digits than its factorization.

121211122111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119354500.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 121211122111202 its reverse (202111221112121), we get a palindrome (323322343223323).

The spelling of 121211122111202 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred twenty-two million, one hundred eleven thousand, two hundred two".