6991130201022 has 64 divisors (see below), whose sum is σ = 16973378449920. Its totient is φ = 2115376300800.

The previous prime is 6991130201021. The next prime is 6991130201087. The reversal of 6991130201022 is 2201020311996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6991130201021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8344354 + ... + 9143877.

It is an arithmetic number, because the mean of its divisors is an integer number (265209038280).

Almost surely, 2^{6991130201022} is an apocalyptic number.

6991130201022 is an abundant number, since it is smaller than the sum of its proper divisors (9982248248898).

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

6991130201022 is a wasteful number, since it uses less digits than its factorization.

6991130201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17488926 (or 17488920 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 6991130201022 in words is "six trillion, nine hundred ninety-one billion, one hundred thirty million, two hundred one thousand, twenty-two".