2121100102122 has 16 divisors (see below), whose sum is σ = 4243713687840. Its totient is φ = 706781120112.

The previous prime is 2121100102103. The next prime is 2121100102141. The reversal of 2121100102122 is 2212010011212.

It is an interprime number because it is at equal distance from previous prime (2121100102103) and next prime (2121100102141).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63043597 + ... + 63077232.

It is an arithmetic number, because the mean of its divisors is an integer number (265232105490).

Almost surely, 2^{2121100102122} is an apocalyptic number.

2121100102122 is an abundant number, since it is smaller than the sum of its proper divisors (2122613585718).

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

2121100102122 is a wasteful number, since it uses less digits than its factorization.

2121100102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126123637.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2121100102122 its reverse (2212010011212), we get a palindrome (4333110113334).

It can be divided in two parts, 2121100 and 102122, that added together give a palindrome (2223222).

The spelling of 2121100102122 in words is "two trillion, one hundred twenty-one billion, one hundred million, one hundred two thousand, one hundred twenty-two".