121111121002 has 8 divisors (see below), whose sum is σ = 182579580000. Its totient is φ = 60251261004.

The previous prime is 121111120987. The next prime is 121111121029. The reversal of 121111121002 is 200121111121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121111121002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152149252 + ... + 152150047.

It is an arithmetic number, because the mean of its divisors is an integer number (22822447500).

Almost surely, 2^121111121002 is an apocalyptic number.

121111121002 is a deficient number, since it is larger than the sum of its proper divisors (61468458998).

121111121002 is a wasteful number, since it uses less digits than its factorization.

121111121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304299500.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121111121002 its reverse (200121111121), we get a palindrome (321232232123).

The spelling of 121111121002 in words is "one hundred twenty-one billion, one hundred eleven million, one hundred twenty-one thousand, two".