10121001201 has 12 divisors (see below), whose sum is σ = 15014338612. Its totient is φ = 6564973536.

The previous prime is 10121001199. The next prime is 10121001217. The reversal of 10121001201 is 10210012101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8848224225 + 1272776976 = 94065^2 + 35676^2 .

It is not a de Polignac number, because 10121001201 - 2¹ = 10121001199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121001251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15196366 + ... + 15197031.

Almost surely, 2^10121001201 is an apocalyptic number.

It is an amenable number.

10121001201 is a deficient number, since it is larger than the sum of its proper divisors (4893337411).

10121001201 is a wasteful number, since it uses less digits than its factorization.

10121001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30393440 (or 30393437 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10121001201 its reverse (10210012101), we get a palindrome (20331013302).

The spelling of 10121001201 in words is "ten billion, one hundred twenty-one million, one thousand, two hundred one".