121000021111002 has 32 divisors (see below), whose sum is σ = 264000440148480. Its totient is φ = 36666618329520.

The previous prime is 121000021110961. The next prime is 121000021111007. The reversal of 121000021111002 is 200111120000121.

It is not an unprimeable number, because it can be changed into a prime (121000021111007) 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, 76481793 + ... + 78047835.

It is an arithmetic number, because the mean of its divisors is an integer number (8250013754640).

Almost surely, 2^{121000021111002} is an apocalyptic number.

121000021111002 is an abundant number, since it is smaller than the sum of its proper divisors (143000419037478).

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

121000021111002 is a wasteful number, since it uses less digits than its factorization.

121000021111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736738.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121000021111002 its reverse (200111120000121), we get a palindrome (321111141111123).

The spelling of 121000021111002 in words is "one hundred twenty-one trillion, twenty-one million, one hundred eleven thousand, two".