420101211 has 16 divisors (see below), whose sum is σ = 576551808. Its totient is φ = 271924800.

The previous prime is 420101197. The next prime is 420101239. The reversal of 420101211 is 112101024.

It is a happy number.

It is not a de Polignac number, because 420101211 - 2⁶ = 420101147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420101251) 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, 17860 + ... + 34046.

It is an arithmetic number, because the mean of its divisors is an integer number (36034488).

Almost surely, 2^420101211 is an apocalyptic number.

420101211 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

420101211 is a deficient number, since it is larger than the sum of its proper divisors (156450597).

420101211 is a wasteful number, since it uses less digits than its factorization.

420101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16442.

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

The square root of 420101211 is about 20496.3706787324. The cubic root of 420101211 is about 748.9473891494.

Adding to 420101211 its reverse (112101024), we get a palindrome (532202235).

The spelling of 420101211 in words is "four hundred twenty million, one hundred one thousand, two hundred eleven".