1211620667022 has 12 divisors (see below), whose sum is σ = 2625178111920. Its totient is φ = 403873555668.

The previous prime is 1211620667011. The next prime is 1211620667077. The reversal of 1211620667022 is 2207660261121.

It is a happy number.

1211620667022 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 620 + 6 + 6 + 7 + 0 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33656129622 + ... + 33656129657.

It is an arithmetic number, because the mean of its divisors is an integer number (218764842660).

Almost surely, 2^{1211620667022} is an apocalyptic number.

1211620667022 is an abundant number, since it is smaller than the sum of its proper divisors (1413557444898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211620667022 is a wasteful number, since it uses less digits than its factorization.

1211620667022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67312259287 (or 67312259284 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 1211620667022 in words is "one trillion, two hundred eleven billion, six hundred twenty million, six hundred sixty-seven thousand, twenty-two".