201201213021 has 8 divisors (see below), whose sum is σ = 279932122560. Its totient is φ = 128302222752.

The previous prime is 201201212959. The next prime is 201201213029. The reversal of 201201213021 is 120312102102.

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

It is not a de Polignac number, because 201201213021 - 2⁷ = 201201212893 is a prime.

It is a super-2 number, since 2×201201213021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201213029) 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, 1457979736 + ... + 1457979873.

It is an arithmetic number, because the mean of its divisors is an integer number (34991515320).

Almost surely, 2^201201213021 is an apocalyptic number.

It is an amenable number.

201201213021 is a deficient number, since it is larger than the sum of its proper divisors (78730909539).

201201213021 is a wasteful number, since it uses less digits than its factorization.

201201213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915959635.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 201201213021 its reverse (120312102102), we get a palindrome (321513315123).

The spelling of 201201213021 in words is "two hundred one billion, two hundred one million, two hundred thirteen thousand, twenty-one".