101002001211 has 18 divisors (see below), whose sum is σ = 152510695428. Its totient is φ = 64407070200.

The previous prime is 101002001209. The next prime is 101002001237. The reversal of 101002001211 is 112100200101.

It is a happy number.

It is not a de Polignac number, because 101002001211 - 2¹ = 101002001209 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 101002001193 and 101002001202.

It is not an unprimeable number, because it can be changed into a prime (101002041211) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10602465 + ... + 10611986.

Almost surely, 2^101002001211 is an apocalyptic number.

101002001211 is a deficient number, since it is larger than the sum of its proper divisors (51508694217).

101002001211 is a wasteful number, since it uses less digits than its factorization.

101002001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21214503 (or 21214477 counting only the distinct ones).

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

Adding to 101002001211 its reverse (112100200101), we get a palindrome (213102201312).

The spelling of 101002001211 in words is "one hundred one billion, two million, one thousand, two hundred eleven".