121202201021 has 8 divisors (see below), whose sum is σ = 132226362144. Its totient is φ = 110179003120.

The previous prime is 121202201017. The next prime is 121202201023. The reversal of 121202201021 is 120102202121.

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 121202201021 - 2² = 121202201017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121202200987 and 121202201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202201023) 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, 36155 + ... + 493671.

It is an arithmetic number, because the mean of its divisors is an integer number (16528295268).

Almost surely, 2^121202201021 is an apocalyptic number.

121202201021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121202201021 is a deficient number, since it is larger than the sum of its proper divisors (11024161123).

121202201021 is a wasteful number, since it uses less digits than its factorization.

121202201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481611.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121202201021 its reverse (120102202121), we get a palindrome (241304403142).

It can be divided in two parts, 121202 and 201021, that added together give a palindrome (322223).

The spelling of 121202201021 in words is "one hundred twenty-one billion, two hundred two million, two hundred one thousand, twenty-one".