121302102122 has 4 divisors (see below), whose sum is σ = 181953153186. Its totient is φ = 60651051060.

The previous prime is 121302102121. The next prime is 121302102133. The reversal of 121302102122 is 221201203121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 63313127641 + 57988974481 = 251621^2 + 240809^2 .

It is a super-2 number, since 2×121302102122² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121302102122.

It is not an unprimeable number, because it can be changed into a prime (121302102121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30325525529 + ... + 30325525532.

Almost surely, 2^121302102122 is an apocalyptic number.

121302102122 is a deficient number, since it is larger than the sum of its proper divisors (60651051064).

121302102122 is an equidigital number, since it uses as much as digits as its factorization.

121302102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60651051063.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121302102122 its reverse (221201203121), we get a palindrome (342503305243).

The spelling of 121302102122 in words is "one hundred twenty-one billion, three hundred two million, one hundred two thousand, one hundred twenty-two".