1211000011022 has 32 divisors (see below), whose sum is σ = 1969568358912. Its totient is φ = 556208924544.

The previous prime is 1211000010967. The next prime is 1211000011069. The reversal of 1211000011022 is 2201100001121.

It is a junction number, because it is equal to n+sod(n) for n = 1211000010994 and 1211000011012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1627973 + ... + 2252175.

It is an arithmetic number, because the mean of its divisors is an integer number (61549011216).

Almost surely, 2^{1211000011022} is an apocalyptic number.

1211000011022 is a deficient number, since it is larger than the sum of its proper divisors (758568347890).

1211000011022 is a wasteful number, since it uses less digits than its factorization.

1211000011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625592.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1211000011022 its reverse (2201100001121), we get a palindrome (3412100012143).

Subtracting 1211000011022 from its reverse (2201100001121), we obtain a palindrome (990099990099).

The spelling of 1211000011022 in words is "one trillion, two hundred eleven billion, eleven thousand, twenty-two".