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202012201 = 383527447
BaseRepresentation
bin11000000101001…
…11011000101001
3112002010021122101
430002213120221
5403203342301
632013453401
75002034566
oct1402473051
9462107571
10202012201
11a4037836
12577a1261
1332b10161
141cb8786d
1512b05701
hexc0a7629

202012201 has 4 divisors (see below), whose sum is σ = 202540032. Its totient is φ = 201484372.

The previous prime is 202012189. The next prime is 202012211. The reversal of 202012201 is 102210202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102210202 = 251105101.

It is a cyclic number.

It is not a de Polignac number, because 202012201 - 215 = 201979433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202012211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263341 + ... + 264106.

It is an arithmetic number, because the mean of its divisors is an integer number (50635008).

Almost surely, 2202012201 is an apocalyptic number.

It is an amenable number.

202012201 is a deficient number, since it is larger than the sum of its proper divisors (527831).

202012201 is an equidigital number, since it uses as much as digits as its factorization.

202012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527830.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 202012201 is about 14213.0996267528. The cubic root of 202012201 is about 586.7582439615.

Adding to 202012201 its reverse (102210202), we get a palindrome (304222403).

The spelling of 202012201 in words is "two hundred two million, twelve thousand, two hundred one".

Divisors: 1 383 527447 202012201