7422122121 has 8 divisors (see below), whose sum is σ = 9896990400. Its totient is φ = 4947667632.

The previous prime is 7422122119. The next prime is 7422122203. The reversal of 7422122121 is 1212212247.

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

It is not a de Polignac number, because 7422122121 - 2¹ = 7422122119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7422122091 and 7422122100.

It is not an unprimeable number, because it can be changed into a prime (7422122111) 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, 58846 + ... + 135303.

It is an arithmetic number, because the mean of its divisors is an integer number (1237123800).

Almost surely, 2^7422122121 is an apocalyptic number.

It is an amenable number.

7422122121 is a deficient number, since it is larger than the sum of its proper divisors (2474868279).

7422122121 is a wasteful number, since it uses less digits than its factorization.

7422122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206895.

The product of its digits is 896, while the sum is 24.

The square root of 7422122121 is about 86151.7389319566. The cubic root of 7422122121 is about 1950.6350875500.

Adding to 7422122121 its reverse (1212212247), we get a palindrome (8634334368).

The spelling of 7422122121 in words is "seven billion, four hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-one".