211011011220201 has 32 divisors (see below), whose sum is σ = 292178488812672. Its totient is φ = 135353515069440.

The previous prime is 211011011220199. The next prime is 211011011220407. The reversal of 211011011220201 is 102022110110112.

It is a happy number.

It is not a de Polignac number, because 211011011220201 - 2¹ = 211011011220199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211011011220001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129954321 + ... + 131568033.

It is an arithmetic number, because the mean of its divisors is an integer number (9130577775396).

Almost surely, 2^{211011011220201} is an apocalyptic number.

It is an amenable number.

211011011220201 is a deficient number, since it is larger than the sum of its proper divisors (81167477592471).

211011011220201 is a wasteful number, since it uses less digits than its factorization.

211011011220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628393.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211011011220201 its reverse (102022110110112), we get a palindrome (313033121330313).

The spelling of 211011011220201 in words is "two hundred eleven trillion, eleven billion, eleven million, two hundred twenty thousand, two hundred one".