1211111122022 has 8 divisors (see below), whose sum is σ = 1816736683872. Its totient is φ = 605532227400.

The previous prime is 1211111121943. The next prime is 1211111122043. The reversal of 1211111122022 is 2202211111121.

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

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, 11601854 + ... + 11705777.

It is an arithmetic number, because the mean of its divisors is an integer number (227092085484).

Almost surely, 2^{1211111122022} is an apocalyptic number.

1211111122022 is a deficient number, since it is larger than the sum of its proper divisors (605625561850).

1211111122022 is a wasteful number, since it uses less digits than its factorization.

1211111122022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23333614.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1211111122022 its reverse (2202211111121), we get a palindrome (3413322233143).

The spelling of 1211111122022 in words is "one trillion, two hundred eleven billion, one hundred eleven million, one hundred twenty-two thousand, twenty-two".