121000221022002 has 32 divisors (see below), whose sum is σ = 280360590398592. Its totient is φ = 34097909641344.

The previous prime is 121000221021997. The next prime is 121000221022007. The reversal of 121000221022002 is 200220122000121.

It is an interprime number because it is at equal distance from previous prime (121000221021997) and next prime (121000221022007).

It is not an unprimeable number, because it can be changed into a prime (121000221022007) 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, 19732583533 + ... + 19732589664.

It is an arithmetic number, because the mean of its divisors is an integer number (8761268449956).

Almost surely, 2^{121000221022002} is an apocalyptic number.

121000221022002 is an abundant number, since it is smaller than the sum of its proper divisors (159360369376590).

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

121000221022002 is a wasteful number, since it uses less digits than its factorization.

121000221022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39465173282.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 121000221022002 its reverse (200220122000121), we get a palindrome (321220343022123).

The spelling of 121000221022002 in words is "one hundred twenty-one trillion, two hundred twenty-one million, twenty-two thousand, two".