1120022001 has 12 divisors (see below), whose sum is σ = 1848925312. Its totient is φ = 640012536.

The previous prime is 1120021993. The next prime is 1120022009. The reversal of 1120022001 is 1002200211.

It is an interprime number because it is at equal distance from previous prime (1120021993) and next prime (1120022009).

It is not a de Polignac number, because 1120022001 - 2³ = 1120021993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120022009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8889001 + ... + 8889126.

Almost surely, 2^1120022001 is an apocalyptic number.

It is an amenable number.

1120022001 is a deficient number, since it is larger than the sum of its proper divisors (728903311).

1120022001 is a wasteful number, since it uses less digits than its factorization.

1120022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778140 (or 17778137 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1120022001 is about 33466.7297625567. The cubic root of 1120022001 is about 1038.5056203294.

Adding to 1120022001 its reverse (1002200211), we get a palindrome (2122222212).

It can be divided in two parts, 112002 and 2001, that added together give a triangular number (114003 = T₄₇₇).

The spelling of 1120022001 in words is "one billion, one hundred twenty million, twenty-two thousand, one".