70227121 has 4 divisors (see below), whose sum is σ = 72492544. Its totient is φ = 67961700.

The previous prime is 70227089. The next prime is 70227133. The reversal of 70227121 is 12172207.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12172207 = 829 ⋅14683.

It is a cyclic number.

It is not a de Polignac number, because 70227121 - 2⁵ = 70227089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70227092 and 70227101.

It is not an unprimeable number, because it can be changed into a prime (70227181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1132665 + ... + 1132726.

It is an arithmetic number, because the mean of its divisors is an integer number (18123136).

Almost surely, 2^70227121 is an apocalyptic number.

It is an amenable number.

70227121 is a deficient number, since it is larger than the sum of its proper divisors (2265423).

70227121 is a wasteful number, since it uses less digits than its factorization.

70227121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265422.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 70227121 is about 8380.1623492627. The cubic root of 70227121 is about 412.5737775598.

Adding to 70227121 its reverse (12172207), we get a palindrome (82399328).

The spelling of 70227121 in words is "seventy million, two hundred twenty-seven thousand, one hundred twenty-one".