1211002022 has 8 divisors (see below), whose sum is σ = 1847291400. Its totient is φ = 595238224.

The previous prime is 1211002007. The next prime is 1211002043. The reversal of 1211002022 is 2202001121.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1211001994 and 1211002012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5131247 + ... + 5131482.

It is an arithmetic number, because the mean of its divisors is an integer number (230911425).

Almost surely, 2^1211002022 is an apocalyptic number.

1211002022 is a deficient number, since it is larger than the sum of its proper divisors (636289378).

1211002022 is a wasteful number, since it uses less digits than its factorization.

1211002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10262790.

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

The square root of 1211002022 is about 34799.4543348024. The cubic root of 1211002022 is about 1065.8963035097.

Adding to 1211002022 its reverse (2202001121), we get a palindrome (3413003143).

Subtracting 1211002022 from its reverse (2202001121), we obtain a palindrome (990999099).

The spelling of 1211002022 in words is "one billion, two hundred eleven million, two thousand, twenty-two".