1012120022 has 4 divisors (see below), whose sum is σ = 1518180036. Its totient is φ = 506060010.

The previous prime is 1012120003. The next prime is 1012120027. The reversal of 1012120022 is 2200212101.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1012119985 and 1012120012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012120027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253030004 + ... + 253030007.

It is an arithmetic number, because the mean of its divisors is an integer number (379545009).

Almost surely, 2^1012120022 is an apocalyptic number.

1012120022 is a deficient number, since it is larger than the sum of its proper divisors (506060014).

1012120022 is an equidigital number, since it uses as much as digits as its factorization.

1012120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506060013.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1012120022 is about 31813.8338148674. The cubic root of 1012120022 is about 1004.0237946933.

Adding to 1012120022 its reverse (2200212101), we get a palindrome (3212332123).

The spelling of 1012120022 in words is "one billion, twelve million, one hundred twenty thousand, twenty-two".