1002012100122 has 32 divisors (see below), whose sum is σ = 2186244748224. Its totient is φ = 303634956800.

The previous prime is 1002012100121. The next prime is 1002012100123. The reversal of 1002012100122 is 2210012102001.

It is an interprime number because it is at equal distance from previous prime (1002012100121) and next prime (1002012100123).

It is a junction number, because it is equal to n+sod(n) for n = 1002012100098 and 1002012100107.

It is not an unprimeable number, because it can be changed into a prime (1002012100121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6306172 + ... + 6463112.

It is an arithmetic number, because the mean of its divisors is an integer number (68320148382).

Almost surely, 2^{1002012100122} is an apocalyptic number.

1002012100122 is an abundant number, since it is smaller than the sum of its proper divisors (1184232648102).

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

1002012100122 is a wasteful number, since it uses less digits than its factorization.

1002012100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253694.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002012100122 its reverse (2210012102001), we get a palindrome (3212024202123).

The spelling of 1002012100122 in words is "one trillion, two billion, twelve million, one hundred thousand, one hundred twenty-two".