212020100121 has 8 divisors (see below), whose sum is σ = 287484881760. Its totient is φ = 138951025952.

The previous prime is 212020100101. The next prime is 212020100137. The reversal of 212020100121 is 121001020212.

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

It is a cyclic number.

It is not a de Polignac number, because 212020100121 - 2²² = 212015905817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212020100097 and 212020100106.

It is not an unprimeable number, because it can be changed into a prime (212020100101) 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, 598926660 + ... + 598927013.

It is an arithmetic number, because the mean of its divisors is an integer number (35935610220).

Almost surely, 2^212020100121 is an apocalyptic number.

It is an amenable number.

212020100121 is a deficient number, since it is larger than the sum of its proper divisors (75464781639).

212020100121 is a wasteful number, since it uses less digits than its factorization.

212020100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197853735.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212020100121 its reverse (121001020212), we get a palindrome (333021120333).

The spelling of 212020100121 in words is "two hundred twelve billion, twenty million, one hundred thousand, one hundred twenty-one".