1422020231 has 4 divisors (see below), whose sum is σ = 1425676200. Its totient is φ = 1418364264.

The previous prime is 1422020209. The next prime is 1422020239. The reversal of 1422020231 is 1320202241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1422020231 - 2⁶ = 1422020167 is a prime.

It is a super-2 number, since 2×1422020231² = 4044283074746586722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422020239) 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, 1827401 + ... + 1828178.

It is an arithmetic number, because the mean of its divisors is an integer number (356419050).

Almost surely, 2^1422020231 is an apocalyptic number.

1422020231 is a deficient number, since it is larger than the sum of its proper divisors (3655969).

1422020231 is an equidigital number, since it uses as much as digits as its factorization.

1422020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655968.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1422020231 is about 37709.6835176324. The cubic root of 1422020231 is about 1124.5236451749.

Adding to 1422020231 its reverse (1320202241), we get a palindrome (2742222472).

The spelling of 1422020231 in words is "one billion, four hundred twenty-two million, twenty thousand, two hundred thirty-one".