121211101002 has 32 divisors (see below), whose sum is σ = 256613734080. Its totient is φ = 38103246720.

The previous prime is 121211100991. The next prime is 121211101009. The reversal of 121211101002 is 200101112121.

It is a super-2 number, since 2×121211101002² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121211101009) 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, 8092699 + ... + 8107662.

It is an arithmetic number, because the mean of its divisors is an integer number (8019179190).

Almost surely, 2^121211101002 is an apocalyptic number.

121211101002 is an abundant number, since it is smaller than the sum of its proper divisors (135402633078).

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

121211101002 is a wasteful number, since it uses less digits than its factorization.

121211101002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16200438.

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

Adding to 121211101002 its reverse (200101112121), we get a palindrome (321312213123).

The spelling of 121211101002 in words is "one hundred twenty-one billion, two hundred eleven million, one hundred one thousand, two".