2121122101000 has 64 divisors (see below), whose sum is σ = 5672486551680. Its totient is φ = 727241860800.

The previous prime is 2121122100997. The next prime is 2121122101037. The reversal of 2121122101000 is 1012211212.

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, 151501722 + ... + 151515721.

It is an arithmetic number, because the mean of its divisors is an integer number (88632602370).

Almost surely, 2^{2121122101000} is an apocalyptic number.

2121122101000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121122101000 is an abundant number, since it is smaller than the sum of its proper divisors (3551364450680).

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

2121122101000 is a wasteful number, since it uses less digits than its factorization.

2121122101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303017471 (or 303017457 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2121122101000 its reverse (1012211212), we get a palindrome (2122134312212).

The spelling of 2121122101000 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred one thousand".