212211010120101 has 16 divisors (see below), whose sum is σ = 284849173324800. Its totient is φ = 140523441364160.

The previous prime is 212211010120091. The next prime is 212211010120111. The reversal of 212211010120101 is 101021010112212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (212211010120091) and next prime (212211010120111).

It is a cyclic number.

It is not a de Polignac number, because 212211010120101 - 2¹⁹ = 212211009595813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211010120111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58928431 + ... + 62425811.

It is an arithmetic number, because the mean of its divisors is an integer number (17803073332800).

Almost surely, 2^{212211010120101} is an apocalyptic number.

It is an amenable number.

212211010120101 is a deficient number, since it is larger than the sum of its proper divisors (72638163204699).

212211010120101 is a wasteful number, since it uses less digits than its factorization.

212211010120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633276.

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

Adding to 212211010120101 its reverse (101021010112212), we get a palindrome (313232020232313).

The spelling of 212211010120101 in words is "two hundred twelve trillion, two hundred eleven billion, ten million, one hundred twenty thousand, one hundred one".