2121022641 has 8 divisors (see below), whose sum is σ = 2828242944. Its totient is φ = 1413908720.

The previous prime is 2121022621. The next prime is 2121022681. The reversal of 2121022641 is 1462201212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121022641 - 2⁵ = 2121022609 is a prime.

It is a super-2 number, since 2×2121022641² = 8997474087269229762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121022621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64795 + ... + 91871.

It is an arithmetic number, because the mean of its divisors is an integer number (353530368).

Almost surely, 2^2121022641 is an apocalyptic number.

It is an amenable number.

2121022641 is a deficient number, since it is larger than the sum of its proper divisors (707220303).

2121022641 is a wasteful number, since it uses less digits than its factorization.

2121022641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53191.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2121022641 is about 46054.5615656039. The cubic root of 2121022641 is about 1284.8381837854.

Adding to 2121022641 its reverse (1462201212), we get a palindrome (3583223853).

The spelling of 2121022641 in words is "two billion, one hundred twenty-one million, twenty-two thousand, six hundred forty-one".