1241022121 has 4 divisors (see below), whose sum is σ = 1242217600. Its totient is φ = 1239826644.

The previous prime is 1241022091. The next prime is 1241022149. The reversal of 1241022121 is 1212201421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1241022121 - 2⁵ = 1241022089 is a prime.

It is a super-2 number, since 2×1241022121² = 3080271809622677282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1241022095 and 1241022104.

It is not an unprimeable number, because it can be changed into a prime (1241028121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596181 + ... + 598258.

It is an arithmetic number, because the mean of its divisors is an integer number (310554400).

Almost surely, 2^1241022121 is an apocalyptic number.

It is an amenable number.

1241022121 is a deficient number, since it is larger than the sum of its proper divisors (1195479).

1241022121 is a wasteful number, since it uses less digits than its factorization.

1241022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195478.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1241022121 is about 35228.1438767358. The cubic root of 1241022121 is about 1074.6321787580.

Adding to 1241022121 its reverse (1212201421), we get a palindrome (2453223542).

The spelling of 1241022121 in words is "one billion, two hundred forty-one million, twenty-two thousand, one hundred twenty-one".