121202121011 has 8 divisors (see below), whose sum is σ = 124092830400. Its totient is φ = 118314686952.

The previous prime is 121202120953. The next prime is 121202121023. The reversal of 121202121011 is 110121202121.

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

It is a cyclic number.

It is not a de Polignac number, because 121202121011 - 2¹⁴ = 121202104627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121202121031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743861 + ... + 892038.

It is an arithmetic number, because the mean of its divisors is an integer number (15511603800).

Almost surely, 2^121202121011 is an apocalyptic number.

121202121011 is a deficient number, since it is larger than the sum of its proper divisors (2890709389).

121202121011 is a wasteful number, since it uses less digits than its factorization.

121202121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637665.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121202121011 its reverse (110121202121), we get a palindrome (231323323132).

The spelling of 121202121011 in words is "one hundred twenty-one billion, two hundred two million, one hundred twenty-one thousand, eleven".