121030442221442 has 16 divisors (see below), whose sum is σ = 195512431261560. Its totient is φ = 55859713558272.

The previous prime is 121030442221373. The next prime is 121030442221457. The reversal of 121030442221442 is 244122244030121.

It can be written as a sum of positive squares in 4 ways, for example, as 102066951746761 + 18963490474681 = 10102819^2 + 4354709^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121030442221399 and 121030442221408.

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, 17413217 + ... + 23351252.

Almost surely, 2^{121030442221442} is an apocalyptic number.

121030442221442 is a deficient number, since it is larger than the sum of its proper divisors (74481989040118).

121030442221442 is a wasteful number, since it uses less digits than its factorization.

121030442221442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40878677.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 121030442221442 its reverse (244122244030121), we get a palindrome (365152686251563).

The spelling of 121030442221442 in words is "one hundred twenty-one trillion, thirty billion, four hundred forty-two million, two hundred twenty-one thousand, four hundred forty-two".